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Finding the Fourth Proportional to 696.87, 1,043.96 and 367.34

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Solution

The fourth proportional to 696.87, 1,043.96 and 367.34 is: 550.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.87 : 1,043.96 = 367.34 : x
  2. Step 2: Convert to fraction form
    696.87/1,043.96 = 367.34/x
  3. Step 3: Cross multiply
    696.87x = 1,043.96 × 367.34
  4. Step 4: Simplify right side
    696.87x = 383,481.21
  5. Step 5: Solve for x
    x = 383,481.21/696.87
  6. Step 6: Final answer
    x = 550.29

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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.