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Finding the Fourth Proportional to 591,758.70, 887,638.05 and 402,801.90

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Solution

The fourth proportional to 591,758.70, 887,638.05 and 402,801.90 is: 604,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,758.70 : 887,638.05 = 402,801.90 : x
  2. Step 2: Convert to fraction form
    591,758.70/887,638.05 = 402,801.90/x
  3. Step 3: Cross multiply
    591,758.70x = 887,638.05 × 402,801.90
  4. Step 4: Simplify right side
    591,758.70x = 357,542,293,052.30
  5. Step 5: Solve for x
    x = 357,542,293,052.30/591,758.70
  6. Step 6: Final answer
    x = 604,202.85

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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.