Home / 781,117.43-1,077,891.17-436,893.71

Finding the Fourth Proportional to 781,117.43, 1,077,891.17 and 436,893.71

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Solution

The fourth proportional to 781,117.43, 1,077,891.17 and 436,893.71 is: 602,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,117.43 : 1,077,891.17 = 436,893.71 : x
  2. Step 2: Convert to fraction form
    781,117.43/1,077,891.17 = 436,893.71/x
  3. Step 3: Cross multiply
    781,117.43x = 1,077,891.17 × 436,893.71
  4. Step 4: Simplify right side
    781,117.43x = 470,923,864,663.62
  5. Step 5: Solve for x
    x = 470,923,864,663.62/781,117.43
  6. Step 6: Final answer
    x = 602,884.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.