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Finding the Fourth Proportional to 364.36, 502.62 and 231.34

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Solution

The fourth proportional to 364.36, 502.62 and 231.34 is: 319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.36 : 502.62 = 231.34 : x
  2. Step 2: Convert to fraction form
    364.36/502.62 = 231.34/x
  3. Step 3: Cross multiply
    364.36x = 502.62 × 231.34
  4. Step 4: Simplify right side
    364.36x = 116,276.11
  5. Step 5: Solve for x
    x = 116,276.11/364.36
  6. Step 6: Final answer
    x = 319.12

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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.