Home / 1,279,984.25-1,766,338.12-699,198.05

Finding the Fourth Proportional to 1,279,984.25, 1,766,338.12 and 699,198.05

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Solution

The fourth proportional to 1,279,984.25, 1,766,338.12 and 699,198.05 is: 964,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,984.25 : 1,766,338.12 = 699,198.05 : x
  2. Step 2: Convert to fraction form
    1,279,984.25/1,766,338.12 = 699,198.05/x
  3. Step 3: Cross multiply
    1,279,984.25x = 1,766,338.12 × 699,198.05
  4. Step 4: Simplify right side
    1,279,984.25x = 1,235,020,169,144.67
  5. Step 5: Solve for x
    x = 1,235,020,169,144.67/1,279,984.25
  6. Step 6: Final answer
    x = 964,871.38

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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.