Home / 818,770.31-1,227,986.31-219,589.03

Finding the Fourth Proportional to 818,770.31, 1,227,986.31 and 219,589.03

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Solution

The fourth proportional to 818,770.31, 1,227,986.31 and 219,589.03 is: 329,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,770.31 : 1,227,986.31 = 219,589.03 : x
  2. Step 2: Convert to fraction form
    818,770.31/1,227,986.31 = 219,589.03/x
  3. Step 3: Cross multiply
    818,770.31x = 1,227,986.31 × 219,589.03
  4. Step 4: Simplify right side
    818,770.31x = 269,652,323,789.43
  5. Step 5: Solve for x
    x = 269,652,323,789.43/818,770.31
  6. Step 6: Final answer
    x = 329,338.18

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1.5x scale

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.