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Finding the Fourth Proportional to 451,070.56, 622,469.82 and 247,119.58

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Solution

The fourth proportional to 451,070.56, 622,469.82 and 247,119.58 is: 341,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,070.56 : 622,469.82 = 247,119.58 : x
  2. Step 2: Convert to fraction form
    451,070.56/622,469.82 = 247,119.58/x
  3. Step 3: Cross multiply
    451,070.56x = 622,469.82 × 247,119.58
  4. Step 4: Simplify right side
    451,070.56x = 153,824,480,481.08
  5. Step 5: Solve for x
    x = 153,824,480,481.08/451,070.56
  6. Step 6: Final answer
    x = 341,020.88

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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.