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Finding the Fourth Proportional to 574,351.96, 861,528.18 and 258,439.84

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Solution

The fourth proportional to 574,351.96, 861,528.18 and 258,439.84 is: 387,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,351.96 : 861,528.18 = 258,439.84 : x
  2. Step 2: Convert to fraction form
    574,351.96/861,528.18 = 258,439.84/x
  3. Step 3: Cross multiply
    574,351.96x = 861,528.18 × 258,439.84
  4. Step 4: Simplify right side
    574,351.96x = 222,653,204,994.69
  5. Step 5: Solve for x
    x = 222,653,204,994.69/574,351.96
  6. Step 6: Final answer
    x = 387,659.87

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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.