Home / 919,215.03-1,268,593.38-511,393.71

Finding the Fourth Proportional to 919,215.03, 1,268,593.38 and 511,393.71

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Solution

The fourth proportional to 919,215.03, 1,268,593.38 and 511,393.71 is: 705,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,215.03 : 1,268,593.38 = 511,393.71 : x
  2. Step 2: Convert to fraction form
    919,215.03/1,268,593.38 = 511,393.71/x
  3. Step 3: Cross multiply
    919,215.03x = 1,268,593.38 × 511,393.71
  4. Step 4: Simplify right side
    919,215.03x = 648,750,675,079.64
  5. Step 5: Solve for x
    x = 648,750,675,079.64/919,215.03
  6. Step 6: Final answer
    x = 705,765.96

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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.