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Finding the Fourth Proportional to 318,912.72, 440,101.80 and 182,952.60

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Solution

The fourth proportional to 318,912.72, 440,101.80 and 182,952.60 is: 252,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,912.72 : 440,101.80 = 182,952.60 : x
  2. Step 2: Convert to fraction form
    318,912.72/440,101.80 = 182,952.60/x
  3. Step 3: Cross multiply
    318,912.72x = 440,101.80 × 182,952.60
  4. Step 4: Simplify right side
    318,912.72x = 80,517,768,574.68
  5. Step 5: Solve for x
    x = 80,517,768,574.68/318,912.72
  6. Step 6: Final answer
    x = 252,475.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.