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Finding the Fourth Proportional to 636,498.61, 954,719.21 and 187,234.13

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Solution

The fourth proportional to 636,498.61, 954,719.21 and 187,234.13 is: 280,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,498.61 : 954,719.21 = 187,234.13 : x
  2. Step 2: Convert to fraction form
    636,498.61/954,719.21 = 187,234.13/x
  3. Step 3: Cross multiply
    636,498.61x = 954,719.21 × 187,234.13
  4. Step 4: Simplify right side
    636,498.61x = 178,756,022,480.33
  5. Step 5: Solve for x
    x = 178,756,022,480.33/636,498.61
  6. Step 6: Final answer
    x = 280,842.75

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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.