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Finding the Fourth Proportional to 1,067.48, 1,601.70 and 702.44

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Solution

The fourth proportional to 1,067.48, 1,601.70 and 702.44 is: 1,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.48 : 1,601.70 = 702.44 : x
  2. Step 2: Convert to fraction form
    1,067.48/1,601.70 = 702.44/x
  3. Step 3: Cross multiply
    1,067.48x = 1,601.70 × 702.44
  4. Step 4: Simplify right side
    1,067.48x = 1,125,098.15
  5. Step 5: Solve for x
    x = 1,125,098.15/1,067.48
  6. Step 6: Final answer
    x = 1,053.98

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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.