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Finding the Fourth Proportional to 702.22, 1,052.24 and 269.14

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Solution

The fourth proportional to 702.22, 1,052.24 and 269.14 is: 403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.22 : 1,052.24 = 269.14 : x
  2. Step 2: Convert to fraction form
    702.22/1,052.24 = 269.14/x
  3. Step 3: Cross multiply
    702.22x = 1,052.24 × 269.14
  4. Step 4: Simplify right side
    702.22x = 283,199.87
  5. Step 5: Solve for x
    x = 283,199.87/702.22
  6. Step 6: Final answer
    x = 403.29

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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.