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Finding the Fourth Proportional to 1,396.52, 2,093.54 and 531.44

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Solution

The fourth proportional to 1,396.52, 2,093.54 and 531.44 is: 796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.52 : 2,093.54 = 531.44 : x
  2. Step 2: Convert to fraction form
    1,396.52/2,093.54 = 531.44/x
  3. Step 3: Cross multiply
    1,396.52x = 2,093.54 × 531.44
  4. Step 4: Simplify right side
    1,396.52x = 1,112,590.90
  5. Step 5: Solve for x
    x = 1,112,590.90/1,396.52
  6. Step 6: Final answer
    x = 796.69

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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.