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Finding the Fourth Proportional to 791,640, 1,092,467.04 and 473,688

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Solution

The fourth proportional to 791,640, 1,092,467.04 and 473,688 is: 653,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,640 : 1,092,467.04 = 473,688 : x
  2. Step 2: Convert to fraction form
    791,640/1,092,467.04 = 473,688/x
  3. Step 3: Cross multiply
    791,640x = 1,092,467.04 × 473,688
  4. Step 4: Simplify right side
    791,640x = 517,488,527,243.52
  5. Step 5: Solve for x
    x = 517,488,527,243.52/791,640
  6. Step 6: Final answer
    x = 653,691.74

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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.