Home / 454,570.20-681,855.22-431,840.59

Finding the Fourth Proportional to 454,570.20, 681,855.22 and 431,840.59

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Solution

The fourth proportional to 454,570.20, 681,855.22 and 431,840.59 is: 647,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,570.20 : 681,855.22 = 431,840.59 : x
  2. Step 2: Convert to fraction form
    454,570.20/681,855.22 = 431,840.59/x
  3. Step 3: Cross multiply
    454,570.20x = 681,855.22 × 431,840.59
  4. Step 4: Simplify right side
    454,570.20x = 294,452,760,499.38
  5. Step 5: Solve for x
    x = 294,452,760,499.38/454,570.20
  6. Step 6: Final answer
    x = 647,760.81

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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.