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Finding the Fourth Proportional to 580,896.20, 870,082.48 and 280,747.30

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Solution

The fourth proportional to 580,896.20, 870,082.48 and 280,747.30 is: 420,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,896.20 : 870,082.48 = 280,747.30 : x
  2. Step 2: Convert to fraction form
    580,896.20/870,082.48 = 280,747.30/x
  3. Step 3: Cross multiply
    580,896.20x = 870,082.48 × 280,747.30
  4. Step 4: Simplify right side
    580,896.20x = 244,273,307,037.30
  5. Step 5: Solve for x
    x = 244,273,307,037.30/580,896.20
  6. Step 6: Final answer
    x = 420,511.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.