Home / 442,744.75-664,120.84-122,921.56

Finding the Fourth Proportional to 442,744.75, 664,120.84 and 122,921.56

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Solution

The fourth proportional to 442,744.75, 664,120.84 and 122,921.56 is: 184,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,744.75 : 664,120.84 = 122,921.56 : x
  2. Step 2: Convert to fraction form
    442,744.75/664,120.84 = 122,921.56/x
  3. Step 3: Cross multiply
    442,744.75x = 664,120.84 × 122,921.56
  4. Step 4: Simplify right side
    442,744.75x = 81,634,767,236.74
  5. Step 5: Solve for x
    x = 81,634,767,236.74/442,744.75
  6. Step 6: Final answer
    x = 184,383.37

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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.