The length of the Beijing-Guangzhou Railway is 2324km, and the length of the Chengdu-Chongqing Railway is 77km less than that of the Beijing-Guangzhou Railway (1/4). How many kilometers is the total length of the Chengdu-Chongqing Railway?
京广铁路长2324km，成渝铁路的长度比京广铁路的(1/4)少77km，成渝铁路全长多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2_324 * (1/4)</gadget>
<output>581</output>

<gadget id="calculator">581 - 77</gadget>
<output>504</output>

<result>504</result>