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Finding the Fourth Proportional to 955.82, 1,434.20 and 832.66

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Solution

The fourth proportional to 955.82, 1,434.20 and 832.66 is: 1,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.82 : 1,434.20 = 832.66 : x
  2. Step 2: Convert to fraction form
    955.82/1,434.20 = 832.66/x
  3. Step 3: Cross multiply
    955.82x = 1,434.20 × 832.66
  4. Step 4: Simplify right side
    955.82x = 1,194,200.97
  5. Step 5: Solve for x
    x = 1,194,200.97/955.82
  6. Step 6: Final answer
    x = 1,249.40

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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.