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Finding the Fourth Proportional to 665,522.13, 998,338.56 and 216,233.07

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Solution

The fourth proportional to 665,522.13, 998,338.56 and 216,233.07 is: 324,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,522.13 : 998,338.56 = 216,233.07 : x
  2. Step 2: Convert to fraction form
    665,522.13/998,338.56 = 216,233.07/x
  3. Step 3: Cross multiply
    665,522.13x = 998,338.56 × 216,233.07
  4. Step 4: Simplify right side
    665,522.13x = 215,873,811,728.18
  5. Step 5: Solve for x
    x = 215,873,811,728.18/665,522.13
  6. Step 6: Final answer
    x = 324,367.59

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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.