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Finding the Fourth Proportional to 304,066.29, 419,623.30 and 201,915.61

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Solution

The fourth proportional to 304,066.29, 419,623.30 and 201,915.61 is: 278,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,066.29 : 419,623.30 = 201,915.61 : x
  2. Step 2: Convert to fraction form
    304,066.29/419,623.30 = 201,915.61/x
  3. Step 3: Cross multiply
    304,066.29x = 419,623.30 × 201,915.61
  4. Step 4: Simplify right side
    304,066.29x = 84,728,494,589.71
  5. Step 5: Solve for x
    x = 84,728,494,589.71/304,066.29
  6. Step 6: Final answer
    x = 278,651.39

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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.