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Finding the Fourth Proportional to 292.51, 404.16 and 226.39

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Solution

The fourth proportional to 292.51, 404.16 and 226.39 is: 312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.51 : 404.16 = 226.39 : x
  2. Step 2: Convert to fraction form
    292.51/404.16 = 226.39/x
  3. Step 3: Cross multiply
    292.51x = 404.16 × 226.39
  4. Step 4: Simplify right side
    292.51x = 91,498.00
  5. Step 5: Solve for x
    x = 91,498.00/292.51
  6. Step 6: Final answer
    x = 312.80

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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.