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Finding the Fourth Proportional to 591,691.65, 888,324.89 and 311,405.73

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Solution

The fourth proportional to 591,691.65, 888,324.89 and 311,405.73 is: 467,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,691.65 : 888,324.89 = 311,405.73 : x
  2. Step 2: Convert to fraction form
    591,691.65/888,324.89 = 311,405.73/x
  3. Step 3: Cross multiply
    591,691.65x = 888,324.89 × 311,405.73
  4. Step 4: Simplify right side
    591,691.65x = 276,629,459,290.59
  5. Step 5: Solve for x
    x = 276,629,459,290.59/591,691.65
  6. Step 6: Final answer
    x = 467,523.01

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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.