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Finding the Fourth Proportional to 533.28, 736.05 and 356.52

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Solution

The fourth proportional to 533.28, 736.05 and 356.52 is: 492.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.28 : 736.05 = 356.52 : x
  2. Step 2: Convert to fraction form
    533.28/736.05 = 356.52/x
  3. Step 3: Cross multiply
    533.28x = 736.05 × 356.52
  4. Step 4: Simplify right side
    533.28x = 262,416.55
  5. Step 5: Solve for x
    x = 262,416.55/533.28
  6. Step 6: Final answer
    x = 492.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.