Home / 1,270,640.39-1,906,194.47-417,760.20

Finding the Fourth Proportional to 1,270,640.39, 1,906,194.47 and 417,760.20

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Solution

The fourth proportional to 1,270,640.39, 1,906,194.47 and 417,760.20 is: 626,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,640.39 : 1,906,194.47 = 417,760.20 : x
  2. Step 2: Convert to fraction form
    1,270,640.39/1,906,194.47 = 417,760.20/x
  3. Step 3: Cross multiply
    1,270,640.39x = 1,906,194.47 × 417,760.20
  4. Step 4: Simplify right side
    1,270,640.39x = 796,332,180,937.29
  5. Step 5: Solve for x
    x = 796,332,180,937.29/1,270,640.39
  6. Step 6: Final answer
    x = 626,717.20

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.