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Finding the Fourth Proportional to 346.92, 478.48 and 236.24

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Solution

The fourth proportional to 346.92, 478.48 and 236.24 is: 325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.92 : 478.48 = 236.24 : x
  2. Step 2: Convert to fraction form
    346.92/478.48 = 236.24/x
  3. Step 3: Cross multiply
    346.92x = 478.48 × 236.24
  4. Step 4: Simplify right side
    346.92x = 113,036.12
  5. Step 5: Solve for x
    x = 113,036.12/346.92
  6. Step 6: Final answer
    x = 325.83

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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.