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Finding the Fourth Proportional to 327,072.40, 490,608.60 and 237,842.80

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Solution

The fourth proportional to 327,072.40, 490,608.60 and 237,842.80 is: 356,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,072.40 : 490,608.60 = 237,842.80 : x
  2. Step 2: Convert to fraction form
    327,072.40/490,608.60 = 237,842.80/x
  3. Step 3: Cross multiply
    327,072.40x = 490,608.60 × 237,842.80
  4. Step 4: Simplify right side
    327,072.40x = 116,687,723,128.08
  5. Step 5: Solve for x
    x = 116,687,723,128.08/327,072.40
  6. Step 6: Final answer
    x = 356,764.20

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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.