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Finding the Fourth Proportional to 533.24, 799.16 and 225

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Solution

The fourth proportional to 533.24, 799.16 and 225 is: 337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.24 : 799.16 = 225 : x
  2. Step 2: Convert to fraction form
    533.24/799.16 = 225/x
  3. Step 3: Cross multiply
    533.24x = 799.16 × 225
  4. Step 4: Simplify right side
    533.24x = 179,809.88
  5. Step 5: Solve for x
    x = 179,809.88/533.24
  6. Step 6: Final answer
    x = 337.21

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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.