In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.

[53.511, -74.226, 70.621, 135.563, 39.885, -37.952, 230.381, 65.136, -17.58]
[ 0.115 -0.16   0.152  0.291  0.086 -0.082  0.495  0.14  -0.038]