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Finding the Fourth Proportional to 694.26, 1,041.39 and 590.85

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Solution

The fourth proportional to 694.26, 1,041.39 and 590.85 is: 886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.26 : 1,041.39 = 590.85 : x
  2. Step 2: Convert to fraction form
    694.26/1,041.39 = 590.85/x
  3. Step 3: Cross multiply
    694.26x = 1,041.39 × 590.85
  4. Step 4: Simplify right side
    694.26x = 615,305.28
  5. Step 5: Solve for x
    x = 615,305.28/694.26
  6. Step 6: Final answer
    x = 886.28

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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.