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Finding the Fourth Proportional to 591,722.70, 887,584.05 and 402,765.90

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Solution

The fourth proportional to 591,722.70, 887,584.05 and 402,765.90 is: 604,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,722.70 : 887,584.05 = 402,765.90 : x
  2. Step 2: Convert to fraction form
    591,722.70/887,584.05 = 402,765.90/x
  3. Step 3: Cross multiply
    591,722.70x = 887,584.05 × 402,765.90
  4. Step 4: Simplify right side
    591,722.70x = 357,488,588,723.90
  5. Step 5: Solve for x
    x = 357,488,588,723.90/591,722.70
  6. Step 6: Final answer
    x = 604,148.85

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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.