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Finding the Fourth Proportional to 425,267.59, 637,679.91 and 200,567.70

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Solution

The fourth proportional to 425,267.59, 637,679.91 and 200,567.70 is: 300,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,267.59 : 637,679.91 = 200,567.70 : x
  2. Step 2: Convert to fraction form
    425,267.59/637,679.91 = 200,567.70/x
  3. Step 3: Cross multiply
    425,267.59x = 637,679.91 × 200,567.70
  4. Step 4: Simplify right side
    425,267.59x = 127,897,992,884.91
  5. Step 5: Solve for x
    x = 127,897,992,884.91/425,267.59
  6. Step 6: Final answer
    x = 300,747.10

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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.