Home / 1,292,814.45-1,939,216.38-394,253.55

Finding the Fourth Proportional to 1,292,814.45, 1,939,216.38 and 394,253.55

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Solution

The fourth proportional to 1,292,814.45, 1,939,216.38 and 394,253.55 is: 591,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,814.45 : 1,939,216.38 = 394,253.55 : x
  2. Step 2: Convert to fraction form
    1,292,814.45/1,939,216.38 = 394,253.55/x
  3. Step 3: Cross multiply
    1,292,814.45x = 1,939,216.38 × 394,253.55
  4. Step 4: Simplify right side
    1,292,814.45x = 764,542,942,033.15
  5. Step 5: Solve for x
    x = 764,542,942,033.15/1,292,814.45
  6. Step 6: Final answer
    x = 591,378.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.