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Finding the Fourth Proportional to 321,601.62, 482,357.74 and 225,247

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Solution

The fourth proportional to 321,601.62, 482,357.74 and 225,247 is: 337,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,601.62 : 482,357.74 = 225,247 : x
  2. Step 2: Convert to fraction form
    321,601.62/482,357.74 = 225,247/x
  3. Step 3: Cross multiply
    321,601.62x = 482,357.74 × 225,247
  4. Step 4: Simplify right side
    321,601.62x = 108,649,633,861.78
  5. Step 5: Solve for x
    x = 108,649,633,861.78/321,601.62
  6. Step 6: Final answer
    x = 337,839.20

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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.