Home / 276,719.30-412,786.01-268,561.78

Finding the Fourth Proportional to 276,719.30, 412,786.01 and 268,561.78

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Solution

The fourth proportional to 276,719.30, 412,786.01 and 268,561.78 is: 400,617.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,719.30 : 412,786.01 = 268,561.78 : x
  2. Step 2: Convert to fraction form
    276,719.30/412,786.01 = 268,561.78/x
  3. Step 3: Cross multiply
    276,719.30x = 412,786.01 × 268,561.78
  4. Step 4: Simplify right side
    276,719.30x = 110,858,545,604.70
  5. Step 5: Solve for x
    x = 110,858,545,604.70/276,719.30
  6. Step 6: Final answer
    x = 400,617.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.