Home / 969,919.77-1,338,530.42-540,199.78

Finding the Fourth Proportional to 969,919.77, 1,338,530.42 and 540,199.78

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Solution

The fourth proportional to 969,919.77, 1,338,530.42 and 540,199.78 is: 745,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,919.77 : 1,338,530.42 = 540,199.78 : x
  2. Step 2: Convert to fraction form
    969,919.77/1,338,530.42 = 540,199.78/x
  3. Step 3: Cross multiply
    969,919.77x = 1,338,530.42 × 540,199.78
  4. Step 4: Simplify right side
    969,919.77x = 723,073,840,902.09
  5. Step 5: Solve for x
    x = 723,073,840,902.09/969,919.77
  6. Step 6: Final answer
    x = 745,498.61

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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.