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Finding the Fourth Proportional to 982.44, 1,473.64 and 404.92

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Solution

The fourth proportional to 982.44, 1,473.64 and 404.92 is: 607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.44 : 1,473.64 = 404.92 : x
  2. Step 2: Convert to fraction form
    982.44/1,473.64 = 404.92/x
  3. Step 3: Cross multiply
    982.44x = 1,473.64 × 404.92
  4. Step 4: Simplify right side
    982.44x = 596,706.31
  5. Step 5: Solve for x
    x = 596,706.31/982.44
  6. Step 6: Final answer
    x = 607.37

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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.