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Finding the Fourth Proportional to 968.12, 1,451.54 and 738.52

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Solution

The fourth proportional to 968.12, 1,451.54 and 738.52 is: 1,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.12 : 1,451.54 = 738.52 : x
  2. Step 2: Convert to fraction form
    968.12/1,451.54 = 738.52/x
  3. Step 3: Cross multiply
    968.12x = 1,451.54 × 738.52
  4. Step 4: Simplify right side
    968.12x = 1,071,991.32
  5. Step 5: Solve for x
    x = 1,071,991.32/968.12
  6. Step 6: Final answer
    x = 1,107.29

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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.