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Finding the Fourth Proportional to 702.12, 968.32 and 552.54

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Solution

The fourth proportional to 702.12, 968.32 and 552.54 is: 762.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.12 : 968.32 = 552.54 : x
  2. Step 2: Convert to fraction form
    702.12/968.32 = 552.54/x
  3. Step 3: Cross multiply
    702.12x = 968.32 × 552.54
  4. Step 4: Simplify right side
    702.12x = 535,035.53
  5. Step 5: Solve for x
    x = 535,035.53/702.12
  6. Step 6: Final answer
    x = 762.03

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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.