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Finding the Fourth Proportional to 619,553.25, 854,998.22 and 347,641.26

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Solution

The fourth proportional to 619,553.25, 854,998.22 and 347,641.26 is: 479,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,553.25 : 854,998.22 = 347,641.26 : x
  2. Step 2: Convert to fraction form
    619,553.25/854,998.22 = 347,641.26/x
  3. Step 3: Cross multiply
    619,553.25x = 854,998.22 × 347,641.26
  4. Step 4: Simplify right side
    619,553.25x = 297,232,659,367.66
  5. Step 5: Solve for x
    x = 297,232,659,367.66/619,553.25
  6. Step 6: Final answer
    x = 479,753.21

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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.