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Finding the Fourth Proportional to 610.48, 916 and 226

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Solution

The fourth proportional to 610.48, 916 and 226 is: 339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.48 : 916 = 226 : x
  2. Step 2: Convert to fraction form
    610.48/916 = 226/x
  3. Step 3: Cross multiply
    610.48x = 916 × 226
  4. Step 4: Simplify right side
    610.48x = 207,016
  5. Step 5: Solve for x
    x = 207,016/610.48
  6. Step 6: Final answer
    x = 339.10

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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.