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Finding the Fourth Proportional to 2,402.98, 3,604.05 and 759.28

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Solution

The fourth proportional to 2,402.98, 3,604.05 and 759.28 is: 1,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.98 : 3,604.05 = 759.28 : x
  2. Step 2: Convert to fraction form
    2,402.98/3,604.05 = 759.28/x
  3. Step 3: Cross multiply
    2,402.98x = 3,604.05 × 759.28
  4. Step 4: Simplify right side
    2,402.98x = 2,736,483.08
  5. Step 5: Solve for x
    x = 2,736,483.08/2,402.98
  6. Step 6: Final answer
    x = 1,138.79

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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.