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Finding the Fourth Proportional to 339,654.36, 468,685.80 and 196,392.72

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Solution

The fourth proportional to 339,654.36, 468,685.80 and 196,392.72 is: 271,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,654.36 : 468,685.80 = 196,392.72 : x
  2. Step 2: Convert to fraction form
    339,654.36/468,685.80 = 196,392.72/x
  3. Step 3: Cross multiply
    339,654.36x = 468,685.80 × 196,392.72
  4. Step 4: Simplify right side
    339,654.36x = 92,046,479,087.38
  5. Step 5: Solve for x
    x = 92,046,479,087.38/339,654.36
  6. Step 6: Final answer
    x = 271,000.43

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1.5x scale

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.