Home / 919,865.43-1,269,456.03-511,993.31

Finding the Fourth Proportional to 919,865.43, 1,269,456.03 and 511,993.31

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Solution

The fourth proportional to 919,865.43, 1,269,456.03 and 511,993.31 is: 706,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,865.43 : 1,269,456.03 = 511,993.31 : x
  2. Step 2: Convert to fraction form
    919,865.43/1,269,456.03 = 511,993.31/x
  3. Step 3: Cross multiply
    919,865.43x = 1,269,456.03 × 511,993.31
  4. Step 4: Simplify right side
    919,865.43x = 649,952,988,351.88
  5. Step 5: Solve for x
    x = 649,952,988,351.88/919,865.43
  6. Step 6: Final answer
    x = 706,573.99

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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.