Home / 809,464.10-1,213,789.49-269,529.51

Finding the Fourth Proportional to 809,464.10, 1,213,789.49 and 269,529.51

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Solution

The fourth proportional to 809,464.10, 1,213,789.49 and 269,529.51 is: 404,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,464.10 : 1,213,789.49 = 269,529.51 : x
  2. Step 2: Convert to fraction form
    809,464.10/1,213,789.49 = 269,529.51/x
  3. Step 3: Cross multiply
    809,464.10x = 1,213,789.49 × 269,529.51
  4. Step 4: Simplify right side
    809,464.10x = 327,152,085,135.20
  5. Step 5: Solve for x
    x = 327,152,085,135.20/809,464.10
  6. Step 6: Final answer
    x = 404,158.86

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Double scale
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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.