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Finding the Fourth Proportional to 354,704.80, 532,057.20 and 221,844.55

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Solution

The fourth proportional to 354,704.80, 532,057.20 and 221,844.55 is: 332,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,704.80 : 532,057.20 = 221,844.55 : x
  2. Step 2: Convert to fraction form
    354,704.80/532,057.20 = 221,844.55/x
  3. Step 3: Cross multiply
    354,704.80x = 532,057.20 × 221,844.55
  4. Step 4: Simplify right side
    354,704.80x = 118,033,990,108.26
  5. Step 5: Solve for x
    x = 118,033,990,108.26/354,704.80
  6. Step 6: Final answer
    x = 332,766.83

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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.