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Finding the Fourth Proportional to 483,471.48, 667,191.42 and 268,611.78

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Solution

The fourth proportional to 483,471.48, 667,191.42 and 268,611.78 is: 370,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,471.48 : 667,191.42 = 268,611.78 : x
  2. Step 2: Convert to fraction form
    483,471.48/667,191.42 = 268,611.78/x
  3. Step 3: Cross multiply
    483,471.48x = 667,191.42 × 268,611.78
  4. Step 4: Simplify right side
    483,471.48x = 179,215,474,926.93
  5. Step 5: Solve for x
    x = 179,215,474,926.93/483,471.48
  6. Step 6: Final answer
    x = 370,684.69

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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.