same dust cloud at different volumes

Consider if you could compare the same cloud of dust, e.g. a nebula, at different volumes. All the particles are the same distance from each other at any given volume, thus the gravitational attraction for any particle in the direction of any other particle is always the same proportion to its attraction to the other particles surrounding it. So the question is how the volume of the cloud affects developments occurring within it. Do various concentrations form into gravity-wells in the same way they would at other volumes? Would the evolution process occur the same but faster because of the higher density and thus higher gravitational gradations? Would other forces interact differently with gravity because of the tighter proximity of the particles?