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Finding the Fourth Proportional to 414,871.20, 620,736.48 and 246,481.92

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Solution

The fourth proportional to 414,871.20, 620,736.48 and 246,481.92 is: 368,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,871.20 : 620,736.48 = 246,481.92 : x
  2. Step 2: Convert to fraction form
    414,871.20/620,736.48 = 246,481.92/x
  3. Step 3: Cross multiply
    414,871.20x = 620,736.48 × 246,481.92
  4. Step 4: Simplify right side
    414,871.20x = 153,000,319,404.44
  5. Step 5: Solve for x
    x = 153,000,319,404.44/414,871.20
  6. Step 6: Final answer
    x = 368,789.93

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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.