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Finding the Fourth Proportional to 833.26, 1,249.90 and 468.31

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Solution

The fourth proportional to 833.26, 1,249.90 and 468.31 is: 702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.26 : 1,249.90 = 468.31 : x
  2. Step 2: Convert to fraction form
    833.26/1,249.90 = 468.31/x
  3. Step 3: Cross multiply
    833.26x = 1,249.90 × 468.31
  4. Step 4: Simplify right side
    833.26x = 585,338.33
  5. Step 5: Solve for x
    x = 585,338.33/833.26
  6. Step 6: Final answer
    x = 702.47

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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.