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Finding the Fourth Proportional to 466,540.78, 644,136.15 and 358,920.94

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Solution

The fourth proportional to 466,540.78, 644,136.15 and 358,920.94 is: 495,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,540.78 : 644,136.15 = 358,920.94 : x
  2. Step 2: Convert to fraction form
    466,540.78/644,136.15 = 358,920.94/x
  3. Step 3: Cross multiply
    466,540.78x = 644,136.15 × 358,920.94
  4. Step 4: Simplify right side
    466,540.78x = 231,193,952,445.98
  5. Step 5: Solve for x
    x = 231,193,952,445.98/466,540.78
  6. Step 6: Final answer
    x = 495,549.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.