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Finding the Fourth Proportional to 1,083.25, 1,625.28 and 506.17

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Solution

The fourth proportional to 1,083.25, 1,625.28 and 506.17 is: 759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.25 : 1,625.28 = 506.17 : x
  2. Step 2: Convert to fraction form
    1,083.25/1,625.28 = 506.17/x
  3. Step 3: Cross multiply
    1,083.25x = 1,625.28 × 506.17
  4. Step 4: Simplify right side
    1,083.25x = 822,667.98
  5. Step 5: Solve for x
    x = 822,667.98/1,083.25
  6. Step 6: Final answer
    x = 759.44

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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.