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Finding the Fourth Proportional to 982.26, 1,473.74 and 607.44

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Solution

The fourth proportional to 982.26, 1,473.74 and 607.44 is: 911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.26 : 1,473.74 = 607.44 : x
  2. Step 2: Convert to fraction form
    982.26/1,473.74 = 607.44/x
  3. Step 3: Cross multiply
    982.26x = 1,473.74 × 607.44
  4. Step 4: Simplify right side
    982.26x = 895,208.63
  5. Step 5: Solve for x
    x = 895,208.63/982.26
  6. Step 6: Final answer
    x = 911.38

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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.