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Finding the Fourth Proportional to 511,058.40, 766,879.20 and 195,741.60

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Solution

The fourth proportional to 511,058.40, 766,879.20 and 195,741.60 is: 293,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,058.40 : 766,879.20 = 195,741.60 : x
  2. Step 2: Convert to fraction form
    511,058.40/766,879.20 = 195,741.60/x
  3. Step 3: Cross multiply
    511,058.40x = 766,879.20 × 195,741.60
  4. Step 4: Simplify right side
    511,058.40x = 150,110,161,614.72
  5. Step 5: Solve for x
    x = 150,110,161,614.72/511,058.40
  6. Step 6: Final answer
    x = 293,724.09

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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.