Home / 919,986.80-1,269,364.89-773,369.21

Finding the Fourth Proportional to 919,986.80, 1,269,364.89 and 773,369.21

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Solution

The fourth proportional to 919,986.80, 1,269,364.89 and 773,369.21 is: 1,067,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,986.80 : 1,269,364.89 = 773,369.21 : x
  2. Step 2: Convert to fraction form
    919,986.80/1,269,364.89 = 773,369.21/x
  3. Step 3: Cross multiply
    919,986.80x = 1,269,364.89 × 773,369.21
  4. Step 4: Simplify right side
    919,986.80x = 981,687,715,834.21
  5. Step 5: Solve for x
    x = 981,687,715,834.21/919,986.80
  6. Step 6: Final answer
    x = 1,067,067.18

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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.