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Finding the Fourth Proportional to 263.84, 395.42 and 202.46

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Solution

The fourth proportional to 263.84, 395.42 and 202.46 is: 303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.84 : 395.42 = 202.46 : x
  2. Step 2: Convert to fraction form
    263.84/395.42 = 202.46/x
  3. Step 3: Cross multiply
    263.84x = 395.42 × 202.46
  4. Step 4: Simplify right side
    263.84x = 80,053.74
  5. Step 5: Solve for x
    x = 80,053.74/263.84
  6. Step 6: Final answer
    x = 303.42

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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.