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Finding the Fourth Proportional to 587,642.73, 881,713.14 and 321,091.83

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Solution

The fourth proportional to 587,642.73, 881,713.14 and 321,091.83 is: 481,773.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,642.73 : 881,713.14 = 321,091.83 : x
  2. Step 2: Convert to fraction form
    587,642.73/881,713.14 = 321,091.83/x
  3. Step 3: Cross multiply
    587,642.73x = 881,713.14 × 321,091.83
  4. Step 4: Simplify right side
    587,642.73x = 283,110,885,657.65
  5. Step 5: Solve for x
    x = 283,110,885,657.65/587,642.73
  6. Step 6: Final answer
    x = 481,773.82

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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.