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.

Example Input: [170.997, 168.919, 162.608, -16.388, -81.975, -60.792, -54.261, 236.975, -95.809]
Example Output: [ 0.397  0.393  0.378 -0.038 -0.191 -0.141 -0.126  0.551 -0.223]

Example Input: [-69.316, 176.216, -54.976]
Example Output: [-1.335  3.394 -1.059]

Example Input: [120.891, 208.578, -85.207]
Example Output:
[ 0.495  0.854 -0.349]