Home / 919,481.31-1,268,859.96-511,583.94

Finding the Fourth Proportional to 919,481.31, 1,268,859.96 and 511,583.94

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Solution

The fourth proportional to 919,481.31, 1,268,859.96 and 511,583.94 is: 705,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,481.31 : 1,268,859.96 = 511,583.94 : x
  2. Step 2: Convert to fraction form
    919,481.31/1,268,859.96 = 511,583.94/x
  3. Step 3: Cross multiply
    919,481.31x = 1,268,859.96 × 511,583.94
  4. Step 4: Simplify right side
    919,481.31x = 649,128,377,645.04
  5. Step 5: Solve for x
    x = 649,128,377,645.04/919,481.31
  6. Step 6: Final answer
    x = 705,972.35

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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.