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Finding the Fourth Proportional to 505,087.30, 757,769.31 and 252,062.34

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Solution

The fourth proportional to 505,087.30, 757,769.31 and 252,062.34 is: 378,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,087.30 : 757,769.31 = 252,062.34 : x
  2. Step 2: Convert to fraction form
    505,087.30/757,769.31 = 252,062.34/x
  3. Step 3: Cross multiply
    505,087.30x = 757,769.31 × 252,062.34
  4. Step 4: Simplify right side
    505,087.30x = 191,005,105,458.79
  5. Step 5: Solve for x
    x = 191,005,105,458.79/505,087.30
  6. Step 6: Final answer
    x = 378,162.56

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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.