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Finding the Fourth Proportional to 702.16, 1,052.92 and 377.44

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Solution

The fourth proportional to 702.16, 1,052.92 and 377.44 is: 565.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.16 : 1,052.92 = 377.44 : x
  2. Step 2: Convert to fraction form
    702.16/1,052.92 = 377.44/x
  3. Step 3: Cross multiply
    702.16x = 1,052.92 × 377.44
  4. Step 4: Simplify right side
    702.16x = 397,414.12
  5. Step 5: Solve for x
    x = 397,414.12/702.16
  6. Step 6: Final answer
    x = 565.99

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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.