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Finding the Fourth Proportional to 451,221.68, 622,672.44 and 247,270.16

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Solution

The fourth proportional to 451,221.68, 622,672.44 and 247,270.16 is: 341,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,221.68 : 622,672.44 = 247,270.16 : x
  2. Step 2: Convert to fraction form
    451,221.68/622,672.44 = 247,270.16/x
  3. Step 3: Cross multiply
    451,221.68x = 622,672.44 × 247,270.16
  4. Step 4: Simplify right side
    451,221.68x = 153,968,313,866.39
  5. Step 5: Solve for x
    x = 153,968,313,866.39/451,221.68
  6. Step 6: Final answer
    x = 341,225.43

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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.