Home / 276,545.92-381,519.84-205,101.76

Finding the Fourth Proportional to 276,545.92, 381,519.84 and 205,101.76

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Solution

The fourth proportional to 276,545.92, 381,519.84 and 205,101.76 is: 282,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,545.92 : 381,519.84 = 205,101.76 : x
  2. Step 2: Convert to fraction form
    276,545.92/381,519.84 = 205,101.76/x
  3. Step 3: Cross multiply
    276,545.92x = 381,519.84 × 205,101.76
  4. Step 4: Simplify right side
    276,545.92x = 78,250,390,658.92
  5. Step 5: Solve for x
    x = 78,250,390,658.92/276,545.92
  6. Step 6: Final answer
    x = 282,956.23

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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.