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Finding the Fourth Proportional to 333.84, 459.90 and 274.44

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Solution

The fourth proportional to 333.84, 459.90 and 274.44 is: 378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.84 : 459.90 = 274.44 : x
  2. Step 2: Convert to fraction form
    333.84/459.90 = 274.44/x
  3. Step 3: Cross multiply
    333.84x = 459.90 × 274.44
  4. Step 4: Simplify right side
    333.84x = 126,214.96
  5. Step 5: Solve for x
    x = 126,214.96/333.84
  6. Step 6: Final answer
    x = 378.07

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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.