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Finding the Fourth Proportional to 365,542.72, 547,748.52 and 253,441.96

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Solution

The fourth proportional to 365,542.72, 547,748.52 and 253,441.96 is: 379,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,542.72 : 547,748.52 = 253,441.96 : x
  2. Step 2: Convert to fraction form
    365,542.72/547,748.52 = 253,441.96/x
  3. Step 3: Cross multiply
    365,542.72x = 547,748.52 × 253,441.96
  4. Step 4: Simplify right side
    365,542.72x = 138,822,458,495.90
  5. Step 5: Solve for x
    x = 138,822,458,495.90/365,542.72
  6. Step 6: Final answer
    x = 379,770.82

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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.