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Finding the Fourth Proportional to 500,546.14, 690,754.40 and 271,103.87

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Solution

The fourth proportional to 500,546.14, 690,754.40 and 271,103.87 is: 374,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,546.14 : 690,754.40 = 271,103.87 : x
  2. Step 2: Convert to fraction form
    500,546.14/690,754.40 = 271,103.87/x
  3. Step 3: Cross multiply
    500,546.14x = 690,754.40 × 271,103.87
  4. Step 4: Simplify right side
    500,546.14x = 187,266,191,059.53
  5. Step 5: Solve for x
    x = 187,266,191,059.53/500,546.14
  6. Step 6: Final answer
    x = 374,123.73

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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.