Home / 809,234.80-1,213,333.80-336,108.40

Finding the Fourth Proportional to 809,234.80, 1,213,333.80 and 336,108.40

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Solution

The fourth proportional to 809,234.80, 1,213,333.80 and 336,108.40 is: 503,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,234.80 : 1,213,333.80 = 336,108.40 : x
  2. Step 2: Convert to fraction form
    809,234.80/1,213,333.80 = 336,108.40/x
  3. Step 3: Cross multiply
    809,234.80x = 1,213,333.80 × 336,108.40
  4. Step 4: Simplify right side
    809,234.80x = 407,811,682,183.92
  5. Step 5: Solve for x
    x = 407,811,682,183.92/809,234.80
  6. Step 6: Final answer
    x = 503,947.29

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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.