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Finding the Fourth Proportional to 5,321,230.80, 7,981,846.20 and 3,193,717.20

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Solution

The fourth proportional to 5,321,230.80, 7,981,846.20 and 3,193,717.20 is: 4,790,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,230.80 : 7,981,846.20 = 3,193,717.20 : x
  2. Step 2: Convert to fraction form
    5,321,230.80/7,981,846.20 = 3,193,717.20/x
  3. Step 3: Cross multiply
    5,321,230.80x = 7,981,846.20 × 3,193,717.20
  4. Step 4: Simplify right side
    5,321,230.80x = 25,491,759,496,694.64
  5. Step 5: Solve for x
    x = 25,491,759,496,694.64/5,321,230.80
  6. Step 6: Final answer
    x = 4,790,575.80

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Similar ratio
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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.