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Finding the Fourth Proportional to 443,540.53, 665,366.15 and 173,633.80

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Solution

The fourth proportional to 443,540.53, 665,366.15 and 173,633.80 is: 260,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,540.53 : 665,366.15 = 173,633.80 : x
  2. Step 2: Convert to fraction form
    443,540.53/665,366.15 = 173,633.80/x
  3. Step 3: Cross multiply
    443,540.53x = 665,366.15 × 173,633.80
  4. Step 4: Simplify right side
    443,540.53x = 115,530,053,034.10
  5. Step 5: Solve for x
    x = 115,530,053,034.10/443,540.53
  6. Step 6: Final answer
    x = 260,472.37

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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.