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Finding the Fourth Proportional to 619,231.36, 854,548.64 and 347,359.52

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Solution

The fourth proportional to 619,231.36, 854,548.64 and 347,359.52 is: 479,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,231.36 : 854,548.64 = 347,359.52 : x
  2. Step 2: Convert to fraction form
    619,231.36/854,548.64 = 347,359.52/x
  3. Step 3: Cross multiply
    619,231.36x = 854,548.64 × 347,359.52
  4. Step 4: Simplify right side
    619,231.36x = 296,835,605,407.05
  5. Step 5: Solve for x
    x = 296,835,605,407.05/619,231.36
  6. Step 6: Final answer
    x = 479,361.39

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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.