Home / 664,966.05-997,589.19-215,651.89

Finding the Fourth Proportional to 664,966.05, 997,589.19 and 215,651.89

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Solution

The fourth proportional to 664,966.05, 997,589.19 and 215,651.89 is: 323,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,966.05 : 997,589.19 = 215,651.89 : x
  2. Step 2: Convert to fraction form
    664,966.05/997,589.19 = 215,651.89/x
  3. Step 3: Cross multiply
    664,966.05x = 997,589.19 × 215,651.89
  4. Step 4: Simplify right side
    664,966.05x = 215,131,990,694.84
  5. Step 5: Solve for x
    x = 215,131,990,694.84/664,966.05
  6. Step 6: Final answer
    x = 323,523.27

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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.