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Finding the Fourth Proportional to 327,964.80, 491,803.20 and 150,412.80

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Solution

The fourth proportional to 327,964.80, 491,803.20 and 150,412.80 is: 225,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,964.80 : 491,803.20 = 150,412.80 : x
  2. Step 2: Convert to fraction form
    327,964.80/491,803.20 = 150,412.80/x
  3. Step 3: Cross multiply
    327,964.80x = 491,803.20 × 150,412.80
  4. Step 4: Simplify right side
    327,964.80x = 73,973,496,360.96
  5. Step 5: Solve for x
    x = 73,973,496,360.96/327,964.80
  6. Step 6: Final answer
    x = 225,553.16

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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.