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Finding the Fourth Proportional to 396,179.88, 546,670.48 and 226,381.20

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Solution

The fourth proportional to 396,179.88, 546,670.48 and 226,381.20 is: 312,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,179.88 : 546,670.48 = 226,381.20 : x
  2. Step 2: Convert to fraction form
    396,179.88/546,670.48 = 226,381.20/x
  3. Step 3: Cross multiply
    396,179.88x = 546,670.48 × 226,381.20
  4. Step 4: Simplify right side
    396,179.88x = 123,755,919,266.98
  5. Step 5: Solve for x
    x = 123,755,919,266.98/396,179.88
  6. Step 6: Final answer
    x = 312,373.05

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1.5x scale

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.