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Finding the Fourth Proportional to 413,619.87, 620,954.79 and 351,684.03

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Solution

The fourth proportional to 413,619.87, 620,954.79 and 351,684.03 is: 527,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,619.87 : 620,954.79 = 351,684.03 : x
  2. Step 2: Convert to fraction form
    413,619.87/620,954.79 = 351,684.03/x
  3. Step 3: Cross multiply
    413,619.87x = 620,954.79 × 351,684.03
  4. Step 4: Simplify right side
    413,619.87x = 218,379,882,995.00
  5. Step 5: Solve for x
    x = 218,379,882,995.00/413,619.87
  6. Step 6: Final answer
    x = 527,972.42

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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.