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Finding the Fourth Proportional to 443,874.20, 665,724.42 and 369,472.44

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Solution

The fourth proportional to 443,874.20, 665,724.42 and 369,472.44 is: 554,136.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,874.20 : 665,724.42 = 369,472.44 : x
  2. Step 2: Convert to fraction form
    443,874.20/665,724.42 = 369,472.44/x
  3. Step 3: Cross multiply
    443,874.20x = 665,724.42 × 369,472.44
  4. Step 4: Simplify right side
    443,874.20x = 245,966,825,824.99
  5. Step 5: Solve for x
    x = 245,966,825,824.99/443,874.20
  6. Step 6: Final answer
    x = 554,136.34

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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.