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Finding the Fourth Proportional to 624, 936.16 and 234

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Solution

The fourth proportional to 624, 936.16 and 234 is: 351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    624 : 936.16 = 234 : x
  2. Step 2: Convert to fraction form
    624/936.16 = 234/x
  3. Step 3: Cross multiply
    624x = 936.16 × 234
  4. Step 4: Simplify right side
    624x = 219,061.44
  5. Step 5: Solve for x
    x = 219,061.44/624
  6. Step 6: Final answer
    x = 351.06

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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.