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Finding the Fourth Proportional to 443,540.43, 665,366.01 and 173,633.71

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Solution

The fourth proportional to 443,540.43, 665,366.01 and 173,633.71 is: 260,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,540.43 : 665,366.01 = 173,633.71 : x
  2. Step 2: Convert to fraction form
    443,540.43/665,366.01 = 173,633.71/x
  3. Step 3: Cross multiply
    443,540.43x = 665,366.01 × 173,633.71
  4. Step 4: Simplify right side
    443,540.43x = 115,529,966,238.78
  5. Step 5: Solve for x
    x = 115,529,966,238.78/443,540.43
  6. Step 6: Final answer
    x = 260,472.23

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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.