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Finding the Fourth Proportional to 444,891.40, 613,950.18 and 243,687.40

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Solution

The fourth proportional to 444,891.40, 613,950.18 and 243,687.40 is: 336,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,891.40 : 613,950.18 = 243,687.40 : x
  2. Step 2: Convert to fraction form
    444,891.40/613,950.18 = 243,687.40/x
  3. Step 3: Cross multiply
    444,891.40x = 613,950.18 × 243,687.40
  4. Step 4: Simplify right side
    444,891.40x = 149,611,923,093.73
  5. Step 5: Solve for x
    x = 149,611,923,093.73/444,891.40
  6. Step 6: Final answer
    x = 336,288.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.