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Finding the Fourth Proportional to 982.94, 1,473.30 and 462.26

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Solution

The fourth proportional to 982.94, 1,473.30 and 462.26 is: 692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.94 : 1,473.30 = 462.26 : x
  2. Step 2: Convert to fraction form
    982.94/1,473.30 = 462.26/x
  3. Step 3: Cross multiply
    982.94x = 1,473.30 × 462.26
  4. Step 4: Simplify right side
    982.94x = 681,047.66
  5. Step 5: Solve for x
    x = 681,047.66/982.94
  6. Step 6: Final answer
    x = 692.87

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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.