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Finding the Fourth Proportional to 451,231.68, 622,697.28 and 250,027.20

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Solution

The fourth proportional to 451,231.68, 622,697.28 and 250,027.20 is: 345,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,231.68 : 622,697.28 = 250,027.20 : x
  2. Step 2: Convert to fraction form
    451,231.68/622,697.28 = 250,027.20/x
  3. Step 3: Cross multiply
    451,231.68x = 622,697.28 × 250,027.20
  4. Step 4: Simplify right side
    451,231.68x = 155,691,257,366.02
  5. Step 5: Solve for x
    x = 155,691,257,366.02/451,231.68
  6. Step 6: Final answer
    x = 345,036.18

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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.