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Finding the Fourth Proportional to 963.67, 1,446.26 and 416.25

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Solution

The fourth proportional to 963.67, 1,446.26 and 416.25 is: 624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.67 : 1,446.26 = 416.25 : x
  2. Step 2: Convert to fraction form
    963.67/1,446.26 = 416.25/x
  3. Step 3: Cross multiply
    963.67x = 1,446.26 × 416.25
  4. Step 4: Simplify right side
    963.67x = 602,005.73
  5. Step 5: Solve for x
    x = 602,005.73/963.67
  6. Step 6: Final answer
    x = 624.70

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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.