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Finding the Fourth Proportional to 443,874.70, 665,725.17 and 369,472.94

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Solution

The fourth proportional to 443,874.70, 665,725.17 and 369,472.94 is: 554,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,874.70 : 665,725.17 = 369,472.94 : x
  2. Step 2: Convert to fraction form
    443,874.70/665,725.17 = 369,472.94/x
  3. Step 3: Cross multiply
    443,874.70x = 665,725.17 × 369,472.94
  4. Step 4: Simplify right side
    443,874.70x = 245,967,435,791.90
  5. Step 5: Solve for x
    x = 245,967,435,791.90/443,874.70
  6. Step 6: Final answer
    x = 554,137.09

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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.