Home / 2,585,578.56-3,878,367.84-812,650.56

Finding the Fourth Proportional to 2,585,578.56, 3,878,367.84 and 812,650.56

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Solution

The fourth proportional to 2,585,578.56, 3,878,367.84 and 812,650.56 is: 1,218,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585,578.56 : 3,878,367.84 = 812,650.56 : x
  2. Step 2: Convert to fraction form
    2,585,578.56/3,878,367.84 = 812,650.56/x
  3. Step 3: Cross multiply
    2,585,578.56x = 3,878,367.84 × 812,650.56
  4. Step 4: Simplify right side
    2,585,578.56x = 3,151,757,797,061.99
  5. Step 5: Solve for x
    x = 3,151,757,797,061.99/2,585,578.56
  6. Step 6: Final answer
    x = 1,218,975.84

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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.