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Finding the Fourth Proportional to 303,648.76, 419,158.80 and 196,227.64

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Solution

The fourth proportional to 303,648.76, 419,158.80 and 196,227.64 is: 270,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,648.76 : 419,158.80 = 196,227.64 : x
  2. Step 2: Convert to fraction form
    303,648.76/419,158.80 = 196,227.64/x
  3. Step 3: Cross multiply
    303,648.76x = 419,158.80 × 196,227.64
  4. Step 4: Simplify right side
    303,648.76x = 82,250,542,109.23
  5. Step 5: Solve for x
    x = 82,250,542,109.23/303,648.76
  6. Step 6: Final answer
    x = 270,873.96

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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.