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Finding the Fourth Proportional to 949.92, 1,424.96 and 333.54

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Solution

The fourth proportional to 949.92, 1,424.96 and 333.54 is: 500.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.92 : 1,424.96 = 333.54 : x
  2. Step 2: Convert to fraction form
    949.92/1,424.96 = 333.54/x
  3. Step 3: Cross multiply
    949.92x = 1,424.96 × 333.54
  4. Step 4: Simplify right side
    949.92x = 475,281.16
  5. Step 5: Solve for x
    x = 475,281.16/949.92
  6. Step 6: Final answer
    x = 500.34

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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.