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Finding the Fourth Proportional to 451,408.52, 622,939.20 and 247,470.68

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Solution

The fourth proportional to 451,408.52, 622,939.20 and 247,470.68 is: 341,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,408.52 : 622,939.20 = 247,470.68 : x
  2. Step 2: Convert to fraction form
    451,408.52/622,939.20 = 247,470.68/x
  3. Step 3: Cross multiply
    451,408.52x = 622,939.20 × 247,470.68
  4. Step 4: Simplify right side
    451,408.52x = 154,159,187,422.66
  5. Step 5: Solve for x
    x = 154,159,187,422.66/451,408.52
  6. Step 6: Final answer
    x = 341,507.04

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1.5x scale

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.