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Finding the Fourth Proportional to 494,428.80, 741,643.20 and 441,284.70

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Solution

The fourth proportional to 494,428.80, 741,643.20 and 441,284.70 is: 661,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,428.80 : 741,643.20 = 441,284.70 : x
  2. Step 2: Convert to fraction form
    494,428.80/741,643.20 = 441,284.70/x
  3. Step 3: Cross multiply
    494,428.80x = 741,643.20 × 441,284.70
  4. Step 4: Simplify right side
    494,428.80x = 327,275,797,019.04
  5. Step 5: Solve for x
    x = 327,275,797,019.04/494,428.80
  6. Step 6: Final answer
    x = 661,927.05

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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.