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Finding the Fourth Proportional to 2,396.22, 3,594.86 and 752.78

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Solution

The fourth proportional to 2,396.22, 3,594.86 and 752.78 is: 1,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,396.22 : 3,594.86 = 752.78 : x
  2. Step 2: Convert to fraction form
    2,396.22/3,594.86 = 752.78/x
  3. Step 3: Cross multiply
    2,396.22x = 3,594.86 × 752.78
  4. Step 4: Simplify right side
    2,396.22x = 2,706,138.71
  5. Step 5: Solve for x
    x = 2,706,138.71/2,396.22
  6. Step 6: Final answer
    x = 1,129.34

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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.