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Finding the Fourth Proportional to 962.24, 1,443.40 and 552.18

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Solution

The fourth proportional to 962.24, 1,443.40 and 552.18 is: 828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.24 : 1,443.40 = 552.18 : x
  2. Step 2: Convert to fraction form
    962.24/1,443.40 = 552.18/x
  3. Step 3: Cross multiply
    962.24x = 1,443.40 × 552.18
  4. Step 4: Simplify right side
    962.24x = 797,016.61
  5. Step 5: Solve for x
    x = 797,016.61/962.24
  6. Step 6: Final answer
    x = 828.29

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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.