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Finding the Fourth Proportional to 994.08, 1,371.92 and 552.14

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Solution

The fourth proportional to 994.08, 1,371.92 and 552.14 is: 762.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.08 : 1,371.92 = 552.14 : x
  2. Step 2: Convert to fraction form
    994.08/1,371.92 = 552.14/x
  3. Step 3: Cross multiply
    994.08x = 1,371.92 × 552.14
  4. Step 4: Simplify right side
    994.08x = 757,491.91
  5. Step 5: Solve for x
    x = 757,491.91/994.08
  6. Step 6: Final answer
    x = 762.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.