Home / 1,394,832.80-1,924,933.20-774,640.81

Finding the Fourth Proportional to 1,394,832.80, 1,924,933.20 and 774,640.81

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Solution

The fourth proportional to 1,394,832.80, 1,924,933.20 and 774,640.81 is: 1,069,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,832.80 : 1,924,933.20 = 774,640.81 : x
  2. Step 2: Convert to fraction form
    1,394,832.80/1,924,933.20 = 774,640.81/x
  3. Step 3: Cross multiply
    1,394,832.80x = 1,924,933.20 × 774,640.81
  4. Step 4: Simplify right side
    1,394,832.80x = 1,491,131,808,431.56
  5. Step 5: Solve for x
    x = 1,491,131,808,431.56/1,394,832.80
  6. Step 6: Final answer
    x = 1,069,039.82

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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.