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.

[216.424, 156.654, -71.054, 170.474, 47.55, -14.294, -42.849]
[ 0.468 0.338 -0.153 0.368 0.103 -0.031 -0.093]

[153.133, -31.416, 223.372, 35.919, 17.848, 15.937, 197.856, 132.652, -29.473, 209.057]
[ 0.166 -0.034 0.242 0.039 0.019 0.017 0.214 0.143 -0.032 0.226]

[57.613, 168.942, -74.891]
[ 0.38 1.114 -0.494]