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Finding the Fourth Proportional to 424,224.28, 636,336.60 and 124,704.88

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Solution

The fourth proportional to 424,224.28, 636,336.60 and 124,704.88 is: 187,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,224.28 : 636,336.60 = 124,704.88 : x
  2. Step 2: Convert to fraction form
    424,224.28/636,336.60 = 124,704.88/x
  3. Step 3: Cross multiply
    424,224.28x = 636,336.60 × 124,704.88
  4. Step 4: Simplify right side
    424,224.28x = 79,354,279,342.61
  5. Step 5: Solve for x
    x = 79,354,279,342.61/424,224.28
  6. Step 6: Final answer
    x = 187,057.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.