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Finding the Fourth Proportional to 672,010.92, 927,404.10 and 381,616.62

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Solution

The fourth proportional to 672,010.92, 927,404.10 and 381,616.62 is: 526,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,010.92 : 927,404.10 = 381,616.62 : x
  2. Step 2: Convert to fraction form
    672,010.92/927,404.10 = 381,616.62/x
  3. Step 3: Cross multiply
    672,010.92x = 927,404.10 × 381,616.62
  4. Step 4: Simplify right side
    672,010.92x = 353,912,818,016.14
  5. Step 5: Solve for x
    x = 353,912,818,016.14/672,010.92
  6. Step 6: Final answer
    x = 526,647.42

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Double scale
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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.