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Finding the Fourth Proportional to 362,561.74, 500,113.50 and 215,286.78

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Solution

The fourth proportional to 362,561.74, 500,113.50 and 215,286.78 is: 296,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,561.74 : 500,113.50 = 215,286.78 : x
  2. Step 2: Convert to fraction form
    362,561.74/500,113.50 = 215,286.78/x
  3. Step 3: Cross multiply
    362,561.74x = 500,113.50 × 215,286.78
  4. Step 4: Simplify right side
    362,561.74x = 107,667,825,049.53
  5. Step 5: Solve for x
    x = 107,667,825,049.53/362,561.74
  6. Step 6: Final answer
    x = 296,964.11

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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.