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Finding the Fourth Proportional to 443,876.88, 613,361.52 and 316,331.04

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Solution

The fourth proportional to 443,876.88, 613,361.52 and 316,331.04 is: 437,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,876.88 : 613,361.52 = 316,331.04 : x
  2. Step 2: Convert to fraction form
    443,876.88/613,361.52 = 316,331.04/x
  3. Step 3: Cross multiply
    443,876.88x = 613,361.52 × 316,331.04
  4. Step 4: Simplify right side
    443,876.88x = 194,025,287,517.58
  5. Step 5: Solve for x
    x = 194,025,287,517.58/443,876.88
  6. Step 6: Final answer
    x = 437,115.10

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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.