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Finding the Fourth Proportional to 1,244.48, 1,863.48 and 996.54

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Solution

The fourth proportional to 1,244.48, 1,863.48 and 996.54 is: 1,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.48 : 1,863.48 = 996.54 : x
  2. Step 2: Convert to fraction form
    1,244.48/1,863.48 = 996.54/x
  3. Step 3: Cross multiply
    1,244.48x = 1,863.48 × 996.54
  4. Step 4: Simplify right side
    1,244.48x = 1,857,032.36
  5. Step 5: Solve for x
    x = 1,857,032.36/1,244.48
  6. Step 6: Final answer
    x = 1,492.22

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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.