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Finding the Fourth Proportional to 363,542.75, 544,832.98 and 278,979.76

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Solution

The fourth proportional to 363,542.75, 544,832.98 and 278,979.76 is: 418,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,542.75 : 544,832.98 = 278,979.76 : x
  2. Step 2: Convert to fraction form
    363,542.75/544,832.98 = 278,979.76/x
  3. Step 3: Cross multiply
    363,542.75x = 544,832.98 × 278,979.76
  4. Step 4: Simplify right side
    363,542.75x = 151,997,374,000.49
  5. Step 5: Solve for x
    x = 151,997,374,000.49/363,542.75
  6. Step 6: Final answer
    x = 418,100.41

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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.