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Finding the Fourth Proportional to 281.88, 422.01 and 246.24

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Solution

The fourth proportional to 281.88, 422.01 and 246.24 is: 368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281.88 : 422.01 = 246.24 : x
  2. Step 2: Convert to fraction form
    281.88/422.01 = 246.24/x
  3. Step 3: Cross multiply
    281.88x = 422.01 × 246.24
  4. Step 4: Simplify right side
    281.88x = 103,915.74
  5. Step 5: Solve for x
    x = 103,915.74/281.88
  6. Step 6: Final answer
    x = 368.65

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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.