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Finding the Fourth Proportional to 2,326.28, 3,488.88 and 682.39

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Solution

The fourth proportional to 2,326.28, 3,488.88 and 682.39 is: 1,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.28 : 3,488.88 = 682.39 : x
  2. Step 2: Convert to fraction form
    2,326.28/3,488.88 = 682.39/x
  3. Step 3: Cross multiply
    2,326.28x = 3,488.88 × 682.39
  4. Step 4: Simplify right side
    2,326.28x = 2,380,759.38
  5. Step 5: Solve for x
    x = 2,380,759.38/2,326.28
  6. Step 6: Final answer
    x = 1,023.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.