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Finding the Fourth Proportional to 624,556.38, 861,887.10 and 338,076.39

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Solution

The fourth proportional to 624,556.38, 861,887.10 and 338,076.39 is: 466,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,556.38 : 861,887.10 = 338,076.39 : x
  2. Step 2: Convert to fraction form
    624,556.38/861,887.10 = 338,076.39/x
  3. Step 3: Cross multiply
    624,556.38x = 861,887.10 × 338,076.39
  4. Step 4: Simplify right side
    624,556.38x = 291,383,679,355.57
  5. Step 5: Solve for x
    x = 291,383,679,355.57/624,556.38
  6. Step 6: Final answer
    x = 466,545.04

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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.