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Stark Industries ordered 2 linear accelerators amounting to $29628475.00. The company paid the equipment on an installment basis deferred on the start of the 7th year with 9 equal payments. They paid a down payment of $345351.00 and $604990.00 at the end of the 3rd period. With the worth of money being 9.66 % compounded semi-annually; Determine the periodic billing if the dues started on the day of purchase neglecting all other down-payments and maintaining the number of equal payments