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Finding the Fourth Proportional to 400,453.92, 600,680.70 and 119,971.17

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Solution

The fourth proportional to 400,453.92, 600,680.70 and 119,971.17 is: 179,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,453.92 : 600,680.70 = 119,971.17 : x
  2. Step 2: Convert to fraction form
    400,453.92/600,680.70 = 119,971.17/x
  3. Step 3: Cross multiply
    400,453.92x = 600,680.70 × 119,971.17
  4. Step 4: Simplify right side
    400,453.92x = 72,064,366,375.42
  5. Step 5: Solve for x
    x = 72,064,366,375.42/400,453.92
  6. Step 6: Final answer
    x = 179,956.70

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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.