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Finding the Fourth Proportional to 451,268.38, 622,757.64 and 247,338.82

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Solution

The fourth proportional to 451,268.38, 622,757.64 and 247,338.82 is: 341,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,268.38 : 622,757.64 = 247,338.82 : x
  2. Step 2: Convert to fraction form
    451,268.38/622,757.64 = 247,338.82/x
  3. Step 3: Cross multiply
    451,268.38x = 622,757.64 × 247,338.82
  4. Step 4: Simplify right side
    451,268.38x = 154,032,139,823.59
  5. Step 5: Solve for x
    x = 154,032,139,823.59/451,268.38
  6. Step 6: Final answer
    x = 341,331.56

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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.