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Finding the Fourth Proportional to 367,633.70, 551,450.55 and 131,243.30

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Solution

The fourth proportional to 367,633.70, 551,450.55 and 131,243.30 is: 196,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,633.70 : 551,450.55 = 131,243.30 : x
  2. Step 2: Convert to fraction form
    367,633.70/551,450.55 = 131,243.30/x
  3. Step 3: Cross multiply
    367,633.70x = 551,450.55 × 131,243.30
  4. Step 4: Simplify right side
    367,633.70x = 72,374,189,968.82
  5. Step 5: Solve for x
    x = 72,374,189,968.82/367,633.70
  6. Step 6: Final answer
    x = 196,864.95

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1.5x scale

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.