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Finding the Fourth Proportional to 591,086.74, 886,759.82 and 191,767.88

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Solution

The fourth proportional to 591,086.74, 886,759.82 and 191,767.88 is: 287,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,086.74 : 886,759.82 = 191,767.88 : x
  2. Step 2: Convert to fraction form
    591,086.74/886,759.82 = 191,767.88/x
  3. Step 3: Cross multiply
    591,086.74x = 886,759.82 × 191,767.88
  4. Step 4: Simplify right side
    591,086.74x = 170,052,050,750.58
  5. Step 5: Solve for x
    x = 170,052,050,750.58/591,086.74
  6. Step 6: Final answer
    x = 287,693.90

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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.