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Finding the Fourth Proportional to 336.96, 505.44 and 174.60

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Solution

The fourth proportional to 336.96, 505.44 and 174.60 is: 261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.96 : 505.44 = 174.60 : x
  2. Step 2: Convert to fraction form
    336.96/505.44 = 174.60/x
  3. Step 3: Cross multiply
    336.96x = 505.44 × 174.60
  4. Step 4: Simplify right side
    336.96x = 88,249.82
  5. Step 5: Solve for x
    x = 88,249.82/336.96
  6. Step 6: Final answer
    x = 261.90

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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.