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Finding the Fourth Proportional to 968.18, 1,334.66 and 746.75

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Solution

The fourth proportional to 968.18, 1,334.66 and 746.75 is: 1,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.18 : 1,334.66 = 746.75 : x
  2. Step 2: Convert to fraction form
    968.18/1,334.66 = 746.75/x
  3. Step 3: Cross multiply
    968.18x = 1,334.66 × 746.75
  4. Step 4: Simplify right side
    968.18x = 996,656.96
  5. Step 5: Solve for x
    x = 996,656.96/968.18
  6. Step 6: Final answer
    x = 1,029.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.