Home / 263,904.52-395,912.96-76,900.36

Finding the Fourth Proportional to 263,904.52, 395,912.96 and 76,900.36

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Solution

The fourth proportional to 263,904.52, 395,912.96 and 76,900.36 is: 115,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,904.52 : 395,912.96 = 76,900.36 : x
  2. Step 2: Convert to fraction form
    263,904.52/395,912.96 = 76,900.36/x
  3. Step 3: Cross multiply
    263,904.52x = 395,912.96 × 76,900.36
  4. Step 4: Simplify right side
    263,904.52x = 30,445,849,152.67
  5. Step 5: Solve for x
    x = 30,445,849,152.67/263,904.52
  6. Step 6: Final answer
    x = 115,366.91

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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.