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Finding the Fourth Proportional to 1,015.62, 1,523.46 and 702.96

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Solution

The fourth proportional to 1,015.62, 1,523.46 and 702.96 is: 1,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.62 : 1,523.46 = 702.96 : x
  2. Step 2: Convert to fraction form
    1,015.62/1,523.46 = 702.96/x
  3. Step 3: Cross multiply
    1,015.62x = 1,523.46 × 702.96
  4. Step 4: Simplify right side
    1,015.62x = 1,070,931.44
  5. Step 5: Solve for x
    x = 1,070,931.44/1,015.62
  6. Step 6: Final answer
    x = 1,054.46

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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.