It's about 70,000,000 times as long as a Grain of Sand.
In other words, 429 furlongs is 69,000,000 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.00000001450 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.000006210 furlongs. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 0.0751 furlongs in height.
It's about 850,000,000 times as long as a Strand of Hair.
It's about 850,000,000 times as tall as a Human hair, Strand of.
It's about 900,000,000 times as tall as a sheet of Paper.
It's about 10,000,000,000 times as long as a Red Blood Cell.
In other words, 429 furlongs is 12,000,000,000 times the length of a Red Blood Cell, and the length of a Red Blood Cell is 0.0000000000830 times that amount.(a.k.a. RBCs, a.k.a. haematids, a.k.a. erythrocyte, a.k.a. erythroid cells, a.k.a. red blood corpuscles) An average Red Blood Cell measures 7.5 µm (micrometers) in diameter. An average human has 20 - 30 trillion red blood cells in their body and each cell completes a circulatory lap in about 20 seconds.
It's about 15,000,000,000 times as long as a Nucleus (Cellular).
In other words, the length of a Nucleus (Cellular) is 0.0000000000710 times 429 furlongs.(for animal cell)
The nucleus of an animal cell measures an average of 0.0000000300 furlongs. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about 45,000,000,000 times as long as an E. coli Bacterium.