Do I just make the back as WRONG as the front?

[CarmenIbanez]

So I completed the front of this sweater, and I am halfway done with the back, to the part where the cables start. I start doing the decrease rows and it just doesn't look the same as the front. So I check the directions, decrease row after every 8th row. Okay, check. That is what I"m doing, only it doesn't seem to match the front. So I look more closely at the front. I did the decrease rows after every 6th row on the front!!! So now do I just keep going and hope for the best?