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Finding the Fourth Proportional to 361,881.78, 543,670.97 and 341,432.25

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Solution

The fourth proportional to 361,881.78, 543,670.97 and 341,432.25 is: 512,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,881.78 : 543,670.97 = 341,432.25 : x
  2. Step 2: Convert to fraction form
    361,881.78/543,670.97 = 341,432.25/x
  3. Step 3: Cross multiply
    361,881.78x = 543,670.97 × 341,432.25
  4. Step 4: Simplify right side
    361,881.78x = 185,626,800,839.62
  5. Step 5: Solve for x
    x = 185,626,800,839.62/361,881.78
  6. Step 6: Final answer
    x = 512,948.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.