Home / 919,191.52-1,268,481.09-516,783.52

Finding the Fourth Proportional to 919,191.52, 1,268,481.09 and 516,783.52

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Solution

The fourth proportional to 919,191.52, 1,268,481.09 and 516,783.52 is: 713,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,191.52 : 1,268,481.09 = 516,783.52 : x
  2. Step 2: Convert to fraction form
    919,191.52/1,268,481.09 = 516,783.52/x
  3. Step 3: Cross multiply
    919,191.52x = 1,268,481.09 × 516,783.52
  4. Step 4: Simplify right side
    919,191.52x = 655,530,122,743.64
  5. Step 5: Solve for x
    x = 655,530,122,743.64/919,191.52
  6. Step 6: Final answer
    x = 713,159.45

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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.