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Finding the Fourth Proportional to 702.01, 968.25 and 515.44

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Solution

The fourth proportional to 702.01, 968.25 and 515.44 is: 710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.01 : 968.25 = 515.44 : x
  2. Step 2: Convert to fraction form
    702.01/968.25 = 515.44/x
  3. Step 3: Cross multiply
    702.01x = 968.25 × 515.44
  4. Step 4: Simplify right side
    702.01x = 499,078.49
  5. Step 5: Solve for x
    x = 499,078.49/702.01
  6. Step 6: Final answer
    x = 710.93

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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.