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Finding the Fourth Proportional to 527,083.20, 790,624.80 and 133,099.20

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Solution

The fourth proportional to 527,083.20, 790,624.80 and 133,099.20 is: 199,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,083.20 : 790,624.80 = 133,099.20 : x
  2. Step 2: Convert to fraction form
    527,083.20/790,624.80 = 133,099.20/x
  3. Step 3: Cross multiply
    527,083.20x = 790,624.80 × 133,099.20
  4. Step 4: Simplify right side
    527,083.20x = 105,231,528,380.16
  5. Step 5: Solve for x
    x = 105,231,528,380.16/527,083.20
  6. Step 6: Final answer
    x = 199,648.80

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Similar ratio
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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.