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Finding the Fourth Proportional to 624,614.54, 861,967.92 and 338,134.40

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Solution

The fourth proportional to 624,614.54, 861,967.92 and 338,134.40 is: 466,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,614.54 : 861,967.92 = 338,134.40 : x
  2. Step 2: Convert to fraction form
    624,614.54/861,967.92 = 338,134.40/x
  3. Step 3: Cross multiply
    624,614.54x = 861,967.92 × 338,134.40
  4. Step 4: Simplify right side
    624,614.54x = 291,461,005,448.45
  5. Step 5: Solve for x
    x = 291,461,005,448.45/624,614.54
  6. Step 6: Final answer
    x = 466,625.39

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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.