The management of London Corporation is considering the purchase of a new machine costing $750,000. The company's desired rate of return is 6%. The present value factors for $1 at compound interest of 6% for one through five years are 0.943, 0.890, 0.840, 0.792, and 0.747, respectively. In addition to this information, use the following data in determining the acceptability in this situation: Year Income from Operations Net Cash Flow 1 $37,500 $187,500 2 37,500 187,500 3 37,500 187,500 4 37,500 187,500 5 37,500 187,500 

what is the cash payback period for this investment?