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Finding the Fourth Proportional to 276,393.28, 413,925.55 and 157,704.79

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Solution

The fourth proportional to 276,393.28, 413,925.55 and 157,704.79 is: 236,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,393.28 : 413,925.55 = 157,704.79 : x
  2. Step 2: Convert to fraction form
    276,393.28/413,925.55 = 157,704.79/x
  3. Step 3: Cross multiply
    276,393.28x = 413,925.55 × 157,704.79
  4. Step 4: Simplify right side
    276,393.28x = 65,278,041,938.38
  5. Step 5: Solve for x
    x = 65,278,041,938.38/276,393.28
  6. Step 6: Final answer
    x = 236,178.11

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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.