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Finding the Fourth Proportional to 573,616.41, 791,591.30 and 318,962.13

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Solution

The fourth proportional to 573,616.41, 791,591.30 and 318,962.13 is: 440,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,616.41 : 791,591.30 = 318,962.13 : x
  2. Step 2: Convert to fraction form
    573,616.41/791,591.30 = 318,962.13/x
  3. Step 3: Cross multiply
    573,616.41x = 791,591.30 × 318,962.13
  4. Step 4: Simplify right side
    573,616.41x = 252,487,641,584.70
  5. Step 5: Solve for x
    x = 252,487,641,584.70/573,616.41
  6. Step 6: Final answer
    x = 440,168.10

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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.