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Finding the Fourth Proportional to 342,560.78, 472,694.44 and 197,387.72

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Solution

The fourth proportional to 342,560.78, 472,694.44 and 197,387.72 is: 272,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,560.78 : 472,694.44 = 197,387.72 : x
  2. Step 2: Convert to fraction form
    342,560.78/472,694.44 = 197,387.72/x
  3. Step 3: Cross multiply
    342,560.78x = 472,694.44 × 197,387.72
  4. Step 4: Simplify right side
    342,560.78x = 93,304,076,781.34
  5. Step 5: Solve for x
    x = 93,304,076,781.34/342,560.78
  6. Step 6: Final answer
    x = 272,372.33

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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.