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Finding the Fourth Proportional to 962.69, 1,443.49 and 654.95

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Solution

The fourth proportional to 962.69, 1,443.49 and 654.95 is: 982.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.69 : 1,443.49 = 654.95 : x
  2. Step 2: Convert to fraction form
    962.69/1,443.49 = 654.95/x
  3. Step 3: Cross multiply
    962.69x = 1,443.49 × 654.95
  4. Step 4: Simplify right side
    962.69x = 945,415.75
  5. Step 5: Solve for x
    x = 945,415.75/962.69
  6. Step 6: Final answer
    x = 982.06

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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.