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Finding the Fourth Proportional to 449,568.11, 620,446.89 and 245,650.01

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Solution

The fourth proportional to 449,568.11, 620,446.89 and 245,650.01 is: 339,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,568.11 : 620,446.89 = 245,650.01 : x
  2. Step 2: Convert to fraction form
    449,568.11/620,446.89 = 245,650.01/x
  3. Step 3: Cross multiply
    449,568.11x = 620,446.89 × 245,650.01
  4. Step 4: Simplify right side
    449,568.11x = 152,412,784,732.97
  5. Step 5: Solve for x
    x = 152,412,784,732.97/449,568.11
  6. Step 6: Final answer
    x = 339,020.45

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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.