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Finding the Fourth Proportional to 276,553.92, 381,530.88 and 205,109.76

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Solution

The fourth proportional to 276,553.92, 381,530.88 and 205,109.76 is: 282,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,553.92 : 381,530.88 = 205,109.76 : x
  2. Step 2: Convert to fraction form
    276,553.92/381,530.88 = 205,109.76/x
  3. Step 3: Cross multiply
    276,553.92x = 381,530.88 × 205,109.76
  4. Step 4: Simplify right side
    276,553.92x = 78,255,707,229.39
  5. Step 5: Solve for x
    x = 78,255,707,229.39/276,553.92
  6. Step 6: Final answer
    x = 282,967.27

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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.