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Finding the Fourth Proportional to 352.44, 486.47 and 236

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Solution

The fourth proportional to 352.44, 486.47 and 236 is: 325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.44 : 486.47 = 236 : x
  2. Step 2: Convert to fraction form
    352.44/486.47 = 236/x
  3. Step 3: Cross multiply
    352.44x = 486.47 × 236
  4. Step 4: Simplify right side
    352.44x = 114,805.74
  5. Step 5: Solve for x
    x = 114,805.74/352.44
  6. Step 6: Final answer
    x = 325.75

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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.