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Finding the Fourth Proportional to 702.22, 1,052.97 and 336.73

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Solution

The fourth proportional to 702.22, 1,052.97 and 336.73 is: 504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.22 : 1,052.97 = 336.73 : x
  2. Step 2: Convert to fraction form
    702.22/1,052.97 = 336.73/x
  3. Step 3: Cross multiply
    702.22x = 1,052.97 × 336.73
  4. Step 4: Simplify right side
    702.22x = 354,566.59
  5. Step 5: Solve for x
    x = 354,566.59/702.22
  6. Step 6: Final answer
    x = 504.92

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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.