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Finding the Fourth Proportional to 974.36, 1,462.32 and 358.26

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Solution

The fourth proportional to 974.36, 1,462.32 and 358.26 is: 537.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.36 : 1,462.32 = 358.26 : x
  2. Step 2: Convert to fraction form
    974.36/1,462.32 = 358.26/x
  3. Step 3: Cross multiply
    974.36x = 1,462.32 × 358.26
  4. Step 4: Simplify right side
    974.36x = 523,890.76
  5. Step 5: Solve for x
    x = 523,890.76/974.36
  6. Step 6: Final answer
    x = 537.68

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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.