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Finding the Fourth Proportional to 327,711.67, 491,066.76 and 220,699.93

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Solution

The fourth proportional to 327,711.67, 491,066.76 and 220,699.93 is: 330,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,711.67 : 491,066.76 = 220,699.93 : x
  2. Step 2: Convert to fraction form
    327,711.67/491,066.76 = 220,699.93/x
  3. Step 3: Cross multiply
    327,711.67x = 491,066.76 × 220,699.93
  4. Step 4: Simplify right side
    327,711.67x = 108,378,399,557.33
  5. Step 5: Solve for x
    x = 108,378,399,557.33/327,711.67
  6. Step 6: Final answer
    x = 330,712.66

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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.