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Finding the Fourth Proportional to 418,143.27, 575,982.57 and 337,344.55

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Solution

The fourth proportional to 418,143.27, 575,982.57 and 337,344.55 is: 464,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,143.27 : 575,982.57 = 337,344.55 : x
  2. Step 2: Convert to fraction form
    418,143.27/575,982.57 = 337,344.55/x
  3. Step 3: Cross multiply
    418,143.27x = 575,982.57 × 337,344.55
  4. Step 4: Simplify right side
    418,143.27x = 194,304,580,884.49
  5. Step 5: Solve for x
    x = 194,304,580,884.49/418,143.27
  6. Step 6: Final answer
    x = 464,684.22

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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.