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Finding the Fourth Proportional to 334.28, 461.46 and 229.64

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Solution

The fourth proportional to 334.28, 461.46 and 229.64 is: 317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.28 : 461.46 = 229.64 : x
  2. Step 2: Convert to fraction form
    334.28/461.46 = 229.64/x
  3. Step 3: Cross multiply
    334.28x = 461.46 × 229.64
  4. Step 4: Simplify right side
    334.28x = 105,969.67
  5. Step 5: Solve for x
    x = 105,969.67/334.28
  6. Step 6: Final answer
    x = 317.01

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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.