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Finding the Fourth Proportional to 653,171.92, 979,819.84 and 253,843.54

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Solution

The fourth proportional to 653,171.92, 979,819.84 and 253,843.54 is: 380,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,171.92 : 979,819.84 = 253,843.54 : x
  2. Step 2: Convert to fraction form
    653,171.92/979,819.84 = 253,843.54/x
  3. Step 3: Cross multiply
    653,171.92x = 979,819.84 × 253,843.54
  4. Step 4: Simplify right side
    653,171.92x = 248,720,936,747.83
  5. Step 5: Solve for x
    x = 248,720,936,747.83/653,171.92
  6. Step 6: Final answer
    x = 380,789.39

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1.5x scale

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.