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Finding the Fourth Proportional to 336.24, 464 and 196.40

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Solution

The fourth proportional to 336.24, 464 and 196.40 is: 271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.24 : 464 = 196.40 : x
  2. Step 2: Convert to fraction form
    336.24/464 = 196.40/x
  3. Step 3: Cross multiply
    336.24x = 464 × 196.40
  4. Step 4: Simplify right side
    336.24x = 91,129.60
  5. Step 5: Solve for x
    x = 91,129.60/336.24
  6. Step 6: Final answer
    x = 271.03

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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.