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Finding the Fourth Proportional to 574,415.62, 861,224.42 and 254,393.09

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Solution

The fourth proportional to 574,415.62, 861,224.42 and 254,393.09 is: 381,412.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,415.62 : 861,224.42 = 254,393.09 : x
  2. Step 2: Convert to fraction form
    574,415.62/861,224.42 = 254,393.09/x
  3. Step 3: Cross multiply
    574,415.62x = 861,224.42 × 254,393.09
  4. Step 4: Simplify right side
    574,415.62x = 219,089,542,268.35
  5. Step 5: Solve for x
    x = 219,089,542,268.35/574,415.62
  6. Step 6: Final answer
    x = 381,412.93

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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.