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Finding the Fourth Proportional to 1,231.16, 1,844.68 and 883.97

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Solution

The fourth proportional to 1,231.16, 1,844.68 and 883.97 is: 1,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.16 : 1,844.68 = 883.97 : x
  2. Step 2: Convert to fraction form
    1,231.16/1,844.68 = 883.97/x
  3. Step 3: Cross multiply
    1,231.16x = 1,844.68 × 883.97
  4. Step 4: Simplify right side
    1,231.16x = 1,630,637.17
  5. Step 5: Solve for x
    x = 1,630,637.17/1,231.16
  6. Step 6: Final answer
    x = 1,324.48

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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.