Home / 826,987.85-1,239,318.23-657,757.11

Finding the Fourth Proportional to 826,987.85, 1,239,318.23 and 657,757.11

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Solution

The fourth proportional to 826,987.85, 1,239,318.23 and 657,757.11 is: 985,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,987.85 : 1,239,318.23 = 657,757.11 : x
  2. Step 2: Convert to fraction form
    826,987.85/1,239,318.23 = 657,757.11/x
  3. Step 3: Cross multiply
    826,987.85x = 1,239,318.23 × 657,757.11
  4. Step 4: Simplify right side
    826,987.85x = 815,170,371,722.61
  5. Step 5: Solve for x
    x = 815,170,371,722.61/826,987.85
  6. Step 6: Final answer
    x = 985,710.21

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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.