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Finding the Fourth Proportional to 482,542.20, 665,472.24 and 301,270.68

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Solution

The fourth proportional to 482,542.20, 665,472.24 and 301,270.68 is: 415,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,542.20 : 665,472.24 = 301,270.68 : x
  2. Step 2: Convert to fraction form
    482,542.20/665,472.24 = 301,270.68/x
  3. Step 3: Cross multiply
    482,542.20x = 665,472.24 × 301,270.68
  4. Step 4: Simplify right side
    482,542.20x = 200,487,274,265.92
  5. Step 5: Solve for x
    x = 200,487,274,265.92/482,542.20
  6. Step 6: Final answer
    x = 415,481.33

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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.