Home / 1,287,770.25-1,777,033.99-714,765.31

Finding the Fourth Proportional to 1,287,770.25, 1,777,033.99 and 714,765.31

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Solution

The fourth proportional to 1,287,770.25, 1,777,033.99 and 714,765.31 is: 986,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,770.25 : 1,777,033.99 = 714,765.31 : x
  2. Step 2: Convert to fraction form
    1,287,770.25/1,777,033.99 = 714,765.31/x
  3. Step 3: Cross multiply
    1,287,770.25x = 1,777,033.99 × 714,765.31
  4. Step 4: Simplify right side
    1,287,770.25x = 1,270,162,257,189.57
  5. Step 5: Solve for x
    x = 1,270,162,257,189.57/1,287,770.25
  6. Step 6: Final answer
    x = 986,326.76

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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.