Home / 809,381.93-1,213,787.85-269,491.61

Finding the Fourth Proportional to 809,381.93, 1,213,787.85 and 269,491.61

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Solution

The fourth proportional to 809,381.93, 1,213,787.85 and 269,491.61 is: 404,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,381.93 : 1,213,787.85 = 269,491.61 : x
  2. Step 2: Convert to fraction form
    809,381.93/1,213,787.85 = 269,491.61/x
  3. Step 3: Cross multiply
    809,381.93x = 1,213,787.85 × 269,491.61
  4. Step 4: Simplify right side
    809,381.93x = 327,105,641,894.94
  5. Step 5: Solve for x
    x = 327,105,641,894.94/809,381.93
  6. Step 6: Final answer
    x = 404,142.51

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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.