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Finding the Fourth Proportional to 955.95, 1,435.38 and 908.97

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Solution

The fourth proportional to 955.95, 1,435.38 and 908.97 is: 1,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.95 : 1,435.38 = 908.97 : x
  2. Step 2: Convert to fraction form
    955.95/1,435.38 = 908.97/x
  3. Step 3: Cross multiply
    955.95x = 1,435.38 × 908.97
  4. Step 4: Simplify right side
    955.95x = 1,304,713.95
  5. Step 5: Solve for x
    x = 1,304,713.95/955.95
  6. Step 6: Final answer
    x = 1,364.83

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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.