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Finding the Fourth Proportional to 966.79, 1,441.94 and 941.41

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Solution

The fourth proportional to 966.79, 1,441.94 and 941.41 is: 1,404.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.79 : 1,441.94 = 941.41 : x
  2. Step 2: Convert to fraction form
    966.79/1,441.94 = 941.41/x
  3. Step 3: Cross multiply
    966.79x = 1,441.94 × 941.41
  4. Step 4: Simplify right side
    966.79x = 1,357,456.74
  5. Step 5: Solve for x
    x = 1,357,456.74/966.79
  6. Step 6: Final answer
    x = 1,404.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.