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Finding the Fourth Proportional to 572,589.38, 789,996.15 and 330,783.73

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Solution

The fourth proportional to 572,589.38, 789,996.15 and 330,783.73 is: 456,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,589.38 : 789,996.15 = 330,783.73 : x
  2. Step 2: Convert to fraction form
    572,589.38/789,996.15 = 330,783.73/x
  3. Step 3: Cross multiply
    572,589.38x = 789,996.15 × 330,783.73
  4. Step 4: Simplify right side
    572,589.38x = 261,317,873,182.64
  5. Step 5: Solve for x
    x = 261,317,873,182.64/572,589.38
  6. Step 6: Final answer
    x = 456,379.18

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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.