Students A, B, C, and D donated money to the Wenchuan earthquake-stricken area. As a result, A donated half of the total of the other three, B donated 1/3 of the total of the other three, and C donated (1/3) of the total of the other three. /4), D donated 130 yuan, how much did A, B, C, and D donate in total.
甲、乙、丙、丁四位同学向汶川地震灾区捐款，结果甲捐了另外三人总数的一半，乙捐了另外三人总数(1/3)，丙捐了另外三人总数的(1/4)，丁捐130元，甲、乙、丙、丁共捐了多少元．
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/3) - (1/4) - (1/5)</gadget>
<output>13/60 = around 0.216667</output>

<gadget id="calculator">130 / (13/60)</gadget>
<output>600</output>

<result>600</result>