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Finding the Fourth Proportional to 624,557.38, 861,888.48 and 338,077.39

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Solution

The fourth proportional to 624,557.38, 861,888.48 and 338,077.39 is: 466,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,557.38 : 861,888.48 = 338,077.39 : x
  2. Step 2: Convert to fraction form
    624,557.38/861,888.48 = 338,077.39/x
  3. Step 3: Cross multiply
    624,557.38x = 861,888.48 × 338,077.39
  4. Step 4: Simplify right side
    624,557.38x = 291,385,007,789.47
  5. Step 5: Solve for x
    x = 291,385,007,789.47/624,557.38
  6. Step 6: Final answer
    x = 466,546.42

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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.