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Finding the Fourth Proportional to 483,917, 667,805.46 and 271,949

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Solution

The fourth proportional to 483,917, 667,805.46 and 271,949 is: 375,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,917 : 667,805.46 = 271,949 : x
  2. Step 2: Convert to fraction form
    483,917/667,805.46 = 271,949/x
  3. Step 3: Cross multiply
    483,917x = 667,805.46 × 271,949
  4. Step 4: Simplify right side
    483,917x = 181,609,027,041.54
  5. Step 5: Solve for x
    x = 181,609,027,041.54/483,917
  6. Step 6: Final answer
    x = 375,289.62

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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.