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Finding the Fourth Proportional to 276,127.67, 381,735.24 and 273,601.69

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Solution

The fourth proportional to 276,127.67, 381,735.24 and 273,601.69 is: 378,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,127.67 : 381,735.24 = 273,601.69 : x
  2. Step 2: Convert to fraction form
    276,127.67/381,735.24 = 273,601.69/x
  3. Step 3: Cross multiply
    276,127.67x = 381,735.24 × 273,601.69
  4. Step 4: Simplify right side
    276,127.67x = 104,443,406,796.56
  5. Step 5: Solve for x
    x = 104,443,406,796.56/276,127.67
  6. Step 6: Final answer
    x = 378,243.18

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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.