Xiaohong and Xiaoqiang started from home at the same time and walked toward each other. Xiaohong walks 52 meters per minute, Xiaoqiang walks 70 meters per minute, and the two meet at point A on the way. If Xiaohong starts 4 minutes earlier, and the speed remains the same, and Xiaoqiang walks 90 meters per minute, the two still meet at point A. How many meters are there between the homes of Xiaohong and Xiaoqiang?
小红和小强同时从家里出发相向而行．小红每分走52米，小强每分走70米，二人在途中的A处相遇．若小红提前4分出发，且速度不变，小强每分走90米，则两人仍在A处相遇．小红和小强两人的家相距多少米．
<gadget id="calculator">90 - 70</gadget>
<output>20</output>

<gadget id="calculator">70 / 20</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">4 * (7/2)</gadget>
<output>14</output>

<gadget id="calculator">14 + 4</gadget>
<output>18</output>

<gadget id="calculator">18 * 52</gadget>
<output>936</output>

<gadget id="calculator">14 * 90</gadget>
<output>1_260</output>

<gadget id="calculator">936 + 1_260</gadget>
<output>2_196</output>

<result>2_196</result>