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Finding the Fourth Proportional to 327,176.80, 490,765.20 and 264,968.80

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Solution

The fourth proportional to 327,176.80, 490,765.20 and 264,968.80 is: 397,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,176.80 : 490,765.20 = 264,968.80 : x
  2. Step 2: Convert to fraction form
    327,176.80/490,765.20 = 264,968.80/x
  3. Step 3: Cross multiply
    327,176.80x = 490,765.20 × 264,968.80
  4. Step 4: Simplify right side
    327,176.80x = 130,037,466,125.76
  5. Step 5: Solve for x
    x = 130,037,466,125.76/327,176.80
  6. Step 6: Final answer
    x = 397,453.20

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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.