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Finding the Fourth Proportional to 624,614.29, 861,968.01 and 338,134.38

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Solution

The fourth proportional to 624,614.29, 861,968.01 and 338,134.38 is: 466,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,614.29 : 861,968.01 = 338,134.38 : x
  2. Step 2: Convert to fraction form
    624,614.29/861,968.01 = 338,134.38/x
  3. Step 3: Cross multiply
    624,614.29x = 861,968.01 × 338,134.38
  4. Step 4: Simplify right side
    624,614.29x = 291,461,012,640.67
  5. Step 5: Solve for x
    x = 291,461,012,640.67/624,614.29
  6. Step 6: Final answer
    x = 466,625.59

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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.