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Finding the Fourth Proportional to 636,717.67, 954,747.85 and 187,380.19

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Solution

The fourth proportional to 636,717.67, 954,747.85 and 187,380.19 is: 280,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,717.67 : 954,747.85 = 187,380.19 : x
  2. Step 2: Convert to fraction form
    636,717.67/954,747.85 = 187,380.19/x
  3. Step 3: Cross multiply
    636,717.67x = 954,747.85 × 187,380.19
  4. Step 4: Simplify right side
    636,717.67x = 178,900,833,535.09
  5. Step 5: Solve for x
    x = 178,900,833,535.09/636,717.67
  6. Step 6: Final answer
    x = 280,973.56

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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.