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Finding the Fourth Proportional to 274,234.40, 410,890.80 and 133,690.40

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Solution

The fourth proportional to 274,234.40, 410,890.80 and 133,690.40 is: 200,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,234.40 : 410,890.80 = 133,690.40 : x
  2. Step 2: Convert to fraction form
    274,234.40/410,890.80 = 133,690.40/x
  3. Step 3: Cross multiply
    274,234.40x = 410,890.80 × 133,690.40
  4. Step 4: Simplify right side
    274,234.40x = 54,932,155,408.32
  5. Step 5: Solve for x
    x = 54,932,155,408.32/274,234.40
  6. Step 6: Final answer
    x = 200,310.96

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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.