Home / 821,727.72-1,133,919.68-454,189.41

Finding the Fourth Proportional to 821,727.72, 1,133,919.68 and 454,189.41

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Solution

The fourth proportional to 821,727.72, 1,133,919.68 and 454,189.41 is: 626,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,727.72 : 1,133,919.68 = 454,189.41 : x
  2. Step 2: Convert to fraction form
    821,727.72/1,133,919.68 = 454,189.41/x
  3. Step 3: Cross multiply
    821,727.72x = 1,133,919.68 × 454,189.41
  4. Step 4: Simplify right side
    821,727.72x = 515,014,304,776.99
  5. Step 5: Solve for x
    x = 515,014,304,776.99/821,727.72
  6. Step 6: Final answer
    x = 626,745.69

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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.