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Finding the Fourth Proportional to 968.66, 1,453.96 and 754.58

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Solution

The fourth proportional to 968.66, 1,453.96 and 754.58 is: 1,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.66 : 1,453.96 = 754.58 : x
  2. Step 2: Convert to fraction form
    968.66/1,453.96 = 754.58/x
  3. Step 3: Cross multiply
    968.66x = 1,453.96 × 754.58
  4. Step 4: Simplify right side
    968.66x = 1,097,129.14
  5. Step 5: Solve for x
    x = 1,097,129.14/968.66
  6. Step 6: Final answer
    x = 1,132.63

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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.