Home / 724,017,391.20-999,643,872.24-677,760,766.56

Finding the Fourth Proportional to 724,017,391.20, 999,643,872.24 and 677,760,766.56

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Solution

The fourth proportional to 724,017,391.20, 999,643,872.24 and 677,760,766.56 is: 935,777,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,017,391.20 : 999,643,872.24 = 677,760,766.56 : x
  2. Step 2: Convert to fraction form
    724,017,391.20/999,643,872.24 = 677,760,766.56/x
  3. Step 3: Cross multiply
    724,017,391.20x = 999,643,872.24 × 677,760,766.56
  4. Step 4: Simplify right side
    724,017,391.20x = 677,519,397,136,388,992
  5. Step 5: Solve for x
    x = 677,519,397,136,388,992/724,017,391.20
  6. Step 6: Final answer
    x = 935,777,793.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.