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Finding the Fourth Proportional to 956.95, 1,436.79 and 932.35

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Solution

The fourth proportional to 956.95, 1,436.79 and 932.35 is: 1,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.95 : 1,436.79 = 932.35 : x
  2. Step 2: Convert to fraction form
    956.95/1,436.79 = 932.35/x
  3. Step 3: Cross multiply
    956.95x = 1,436.79 × 932.35
  4. Step 4: Simplify right side
    956.95x = 1,339,591.16
  5. Step 5: Solve for x
    x = 1,339,591.16/956.95
  6. Step 6: Final answer
    x = 1,399.85

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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.