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Finding the Fourth Proportional to 961.74, 1,441.75 and 467.84

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Solution

The fourth proportional to 961.74, 1,441.75 and 467.84 is: 701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.74 : 1,441.75 = 467.84 : x
  2. Step 2: Convert to fraction form
    961.74/1,441.75 = 467.84/x
  3. Step 3: Cross multiply
    961.74x = 1,441.75 × 467.84
  4. Step 4: Simplify right side
    961.74x = 674,508.32
  5. Step 5: Solve for x
    x = 674,508.32/961.74
  6. Step 6: Final answer
    x = 701.34

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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.