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Finding the Fourth Proportional to 1,908.24, 2,863.16 and 676.52

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Solution

The fourth proportional to 1,908.24, 2,863.16 and 676.52 is: 1,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.24 : 2,863.16 = 676.52 : x
  2. Step 2: Convert to fraction form
    1,908.24/2,863.16 = 676.52/x
  3. Step 3: Cross multiply
    1,908.24x = 2,863.16 × 676.52
  4. Step 4: Simplify right side
    1,908.24x = 1,936,985.00
  5. Step 5: Solve for x
    x = 1,936,985.00/1,908.24
  6. Step 6: Final answer
    x = 1,015.06

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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.