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Finding the Fourth Proportional to 484, 667.74 and 336.94

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Solution

The fourth proportional to 484, 667.74 and 336.94 is: 464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484 : 667.74 = 336.94 : x
  2. Step 2: Convert to fraction form
    484/667.74 = 336.94/x
  3. Step 3: Cross multiply
    484x = 667.74 × 336.94
  4. Step 4: Simplify right side
    484x = 224,988.32
  5. Step 5: Solve for x
    x = 224,988.32/484
  6. Step 6: Final answer
    x = 464.85

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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.