The sales price of a real estate is 4,750 yuan/square meter, and a 10% discount is available for one-time payment. Uncle Zhang is optimistic about a house of 82.5 square meters in this real estate. If Uncle Zhang buys it with a one-time payment, at least how much money should he prepare?
某楼盘的销售价格是4750元/平方米，如果一次性付款可打九折．张叔叔看好该楼盘一套82.5平方米的房子，如果张叔叔采用一次性付款购买，至少要准备多少钱？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">4_750 * 82.5 * (9/10)</gadget>
<output>352_687.5</output>

<result>352_687.5</result>