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Finding the Fourth Proportional to 443,609.57, 665,469.62 and 173,702.85

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Solution

The fourth proportional to 443,609.57, 665,469.62 and 173,702.85 is: 260,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,609.57 : 665,469.62 = 173,702.85 : x
  2. Step 2: Convert to fraction form
    443,609.57/665,469.62 = 173,702.85/x
  3. Step 3: Cross multiply
    443,609.57x = 665,469.62 × 173,702.85
  4. Step 4: Simplify right side
    443,609.57x = 115,593,968,713.90
  5. Step 5: Solve for x
    x = 115,593,968,713.90/443,609.57
  6. Step 6: Final answer
    x = 260,575.92

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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.