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Finding the Fourth Proportional to 963.84, 1,446.58 and 444.64

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Solution

The fourth proportional to 963.84, 1,446.58 and 444.64 is: 667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.84 : 1,446.58 = 444.64 : x
  2. Step 2: Convert to fraction form
    963.84/1,446.58 = 444.64/x
  3. Step 3: Cross multiply
    963.84x = 1,446.58 × 444.64
  4. Step 4: Simplify right side
    963.84x = 643,207.33
  5. Step 5: Solve for x
    x = 643,207.33/963.84
  6. Step 6: Final answer
    x = 667.34

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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.