Home / 453,719.87-680,527.94-121,321.79

Finding the Fourth Proportional to 453,719.87, 680,527.94 and 121,321.79

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Solution

The fourth proportional to 453,719.87, 680,527.94 and 121,321.79 is: 181,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,719.87 : 680,527.94 = 121,321.79 : x
  2. Step 2: Convert to fraction form
    453,719.87/680,527.94 = 121,321.79/x
  3. Step 3: Cross multiply
    453,719.87x = 680,527.94 × 121,321.79
  4. Step 4: Simplify right side
    453,719.87x = 82,562,863,816.56
  5. Step 5: Solve for x
    x = 82,562,863,816.56/453,719.87
  6. Step 6: Final answer
    x = 181,968.81

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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.