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Finding the Fourth Proportional to 995.97, 1,494.03 and 265.53

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Solution

The fourth proportional to 995.97, 1,494.03 and 265.53 is: 398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.97 : 1,494.03 = 265.53 : x
  2. Step 2: Convert to fraction form
    995.97/1,494.03 = 265.53/x
  3. Step 3: Cross multiply
    995.97x = 1,494.03 × 265.53
  4. Step 4: Simplify right side
    995.97x = 396,709.79
  5. Step 5: Solve for x
    x = 396,709.79/995.97
  6. Step 6: Final answer
    x = 398.31

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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.