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Finding the Fourth Proportional to 732.16, 1,010.56 and 697.44

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Solution

The fourth proportional to 732.16, 1,010.56 and 697.44 is: 962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.16 : 1,010.56 = 697.44 : x
  2. Step 2: Convert to fraction form
    732.16/1,010.56 = 697.44/x
  3. Step 3: Cross multiply
    732.16x = 1,010.56 × 697.44
  4. Step 4: Simplify right side
    732.16x = 704,804.97
  5. Step 5: Solve for x
    x = 704,804.97/732.16
  6. Step 6: Final answer
    x = 962.64

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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.