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Finding the Fourth Proportional to 327,247.47, 490,871.88 and 90,590.85

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Solution

The fourth proportional to 327,247.47, 490,871.88 and 90,590.85 is: 135,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,247.47 : 490,871.88 = 90,590.85 : x
  2. Step 2: Convert to fraction form
    327,247.47/490,871.88 = 90,590.85/x
  3. Step 3: Cross multiply
    327,247.47x = 490,871.88 × 90,590.85
  4. Step 4: Simplify right side
    327,247.47x = 44,468,500,850.30
  5. Step 5: Solve for x
    x = 44,468,500,850.30/327,247.47
  6. Step 6: Final answer
    x = 135,886.46

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1.5x scale

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.