Bluebulb Projects' The Measure of Things presents:
1,700 is about four-fifths the number of Steps in the Sears Tower.
In other words, it's 0.8061 times the count of Steps in the Sears Tower, and the count of Steps in the Sears Tower is 1.241 times that amount.
(a.k.a. Willis Tower) (Chicago, Illinois) (steps per stairwell)