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Finding the Fourth Proportional to 363,539.75, 544,828.48 and 278,976.76

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Solution

The fourth proportional to 363,539.75, 544,828.48 and 278,976.76 is: 418,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,539.75 : 544,828.48 = 278,976.76 : x
  2. Step 2: Convert to fraction form
    363,539.75/544,828.48 = 278,976.76/x
  3. Step 3: Cross multiply
    363,539.75x = 544,828.48 × 278,976.76
  4. Step 4: Simplify right side
    363,539.75x = 151,994,482,046.61
  5. Step 5: Solve for x
    x = 151,994,482,046.61/363,539.75
  6. Step 6: Final answer
    x = 418,095.91

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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.