Home / 492,429.22-680,112.53-331,003.92

Finding the Fourth Proportional to 492,429.22, 680,112.53 and 331,003.92

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Solution

The fourth proportional to 492,429.22, 680,112.53 and 331,003.92 is: 457,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,429.22 : 680,112.53 = 331,003.92 : x
  2. Step 2: Convert to fraction form
    492,429.22/680,112.53 = 331,003.92/x
  3. Step 3: Cross multiply
    492,429.22x = 680,112.53 × 331,003.92
  4. Step 4: Simplify right side
    492,429.22x = 225,119,913,471.12
  5. Step 5: Solve for x
    x = 225,119,913,471.12/492,429.22
  6. Step 6: Final answer
    x = 457,161.97

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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.