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Finding the Fourth Proportional to 329,865.90, 495,041.85 and 222,997.74

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Solution

The fourth proportional to 329,865.90, 495,041.85 and 222,997.74 is: 334,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,865.90 : 495,041.85 = 222,997.74 : x
  2. Step 2: Convert to fraction form
    329,865.90/495,041.85 = 222,997.74/x
  3. Step 3: Cross multiply
    329,865.90x = 495,041.85 × 222,997.74
  4. Step 4: Simplify right side
    329,865.90x = 110,393,213,755.42
  5. Step 5: Solve for x
    x = 110,393,213,755.42/329,865.90
  6. Step 6: Final answer
    x = 334,660.88

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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.