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Finding the Fourth Proportional to 962.43, 1,443.71 and 414.64

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Solution

The fourth proportional to 962.43, 1,443.71 and 414.64 is: 621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.43 : 1,443.71 = 414.64 : x
  2. Step 2: Convert to fraction form
    962.43/1,443.71 = 414.64/x
  3. Step 3: Cross multiply
    962.43x = 1,443.71 × 414.64
  4. Step 4: Simplify right side
    962.43x = 598,619.91
  5. Step 5: Solve for x
    x = 598,619.91/962.43
  6. Step 6: Final answer
    x = 621.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.