Home / 664,404.96-996,766.20-215,126.31

Finding the Fourth Proportional to 664,404.96, 996,766.20 and 215,126.31

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Solution

The fourth proportional to 664,404.96, 996,766.20 and 215,126.31 is: 322,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,404.96 : 996,766.20 = 215,126.31 : x
  2. Step 2: Convert to fraction form
    664,404.96/996,766.20 = 215,126.31/x
  3. Step 3: Cross multiply
    664,404.96x = 996,766.20 × 215,126.31
  4. Step 4: Simplify right side
    664,404.96x = 214,430,634,538.72
  5. Step 5: Solve for x
    x = 214,430,634,538.72/664,404.96
  6. Step 6: Final answer
    x = 322,740.87

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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.