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Finding the Fourth Proportional to 982.84, 1,474.50 and 333.58

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Solution

The fourth proportional to 982.84, 1,474.50 and 333.58 is: 500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.84 : 1,474.50 = 333.58 : x
  2. Step 2: Convert to fraction form
    982.84/1,474.50 = 333.58/x
  3. Step 3: Cross multiply
    982.84x = 1,474.50 × 333.58
  4. Step 4: Simplify right side
    982.84x = 491,863.71
  5. Step 5: Solve for x
    x = 491,863.71/982.84
  6. Step 6: Final answer
    x = 500.45

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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.