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Finding the Fourth Proportional to 576,109.80, 863,736.57 and 276,304.86

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Solution

The fourth proportional to 576,109.80, 863,736.57 and 276,304.86 is: 414,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,109.80 : 863,736.57 = 276,304.86 : x
  2. Step 2: Convert to fraction form
    576,109.80/863,736.57 = 276,304.86/x
  3. Step 3: Cross multiply
    576,109.80x = 863,736.57 × 276,304.86
  4. Step 4: Simplify right side
    576,109.80x = 238,654,612,050.73
  5. Step 5: Solve for x
    x = 238,654,612,050.73/576,109.80
  6. Step 6: Final answer
    x = 414,251.96

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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.