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Finding the Fourth Proportional to 327,200.70, 490,811.97 and 90,523.56

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Solution

The fourth proportional to 327,200.70, 490,811.97 and 90,523.56 is: 135,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,200.70 : 490,811.97 = 90,523.56 : x
  2. Step 2: Convert to fraction form
    327,200.70/490,811.97 = 90,523.56/x
  3. Step 3: Cross multiply
    327,200.70x = 490,811.97 × 90,523.56
  4. Step 4: Simplify right side
    327,200.70x = 44,430,046,815.01
  5. Step 5: Solve for x
    x = 44,430,046,815.01/327,200.70
  6. Step 6: Final answer
    x = 135,788.36

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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.