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Finding the Fourth Proportional to 591,419.52, 887,480.64 and 217,704.96

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Solution

The fourth proportional to 591,419.52, 887,480.64 and 217,704.96 is: 326,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,419.52 : 887,480.64 = 217,704.96 : x
  2. Step 2: Convert to fraction form
    591,419.52/887,480.64 = 217,704.96/x
  3. Step 3: Cross multiply
    591,419.52x = 887,480.64 × 217,704.96
  4. Step 4: Simplify right side
    591,419.52x = 193,208,937,231.97
  5. Step 5: Solve for x
    x = 193,208,937,231.97/591,419.52
  6. Step 6: Final answer
    x = 326,686.78

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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.