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Finding the Fourth Proportional to 974.35, 1,462.27 and 358.21

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Solution

The fourth proportional to 974.35, 1,462.27 and 358.21 is: 537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.35 : 1,462.27 = 358.21 : x
  2. Step 2: Convert to fraction form
    974.35/1,462.27 = 358.21/x
  3. Step 3: Cross multiply
    974.35x = 1,462.27 × 358.21
  4. Step 4: Simplify right side
    974.35x = 523,799.74
  5. Step 5: Solve for x
    x = 523,799.74/974.35
  6. Step 6: Final answer
    x = 537.59

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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.