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Finding the Fourth Proportional to 695.26, 1,042.89 and 464.11

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Solution

The fourth proportional to 695.26, 1,042.89 and 464.11 is: 696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.26 : 1,042.89 = 464.11 : x
  2. Step 2: Convert to fraction form
    695.26/1,042.89 = 464.11/x
  3. Step 3: Cross multiply
    695.26x = 1,042.89 × 464.11
  4. Step 4: Simplify right side
    695.26x = 484,015.68
  5. Step 5: Solve for x
    x = 484,015.68/695.26
  6. Step 6: Final answer
    x = 696.17

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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.