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Finding the Fourth Proportional to 983.14, 1,475.25 and 367.26

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Solution

The fourth proportional to 983.14, 1,475.25 and 367.26 is: 551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.14 : 1,475.25 = 367.26 : x
  2. Step 2: Convert to fraction form
    983.14/1,475.25 = 367.26/x
  3. Step 3: Cross multiply
    983.14x = 1,475.25 × 367.26
  4. Step 4: Simplify right side
    983.14x = 541,800.32
  5. Step 5: Solve for x
    x = 541,800.32/983.14
  6. Step 6: Final answer
    x = 551.09

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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.