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Finding the Fourth Proportional to 619,188.37, 854,487.09 and 343,551.40

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Solution

The fourth proportional to 619,188.37, 854,487.09 and 343,551.40 is: 474,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,188.37 : 854,487.09 = 343,551.40 : x
  2. Step 2: Convert to fraction form
    619,188.37/854,487.09 = 343,551.40/x
  3. Step 3: Cross multiply
    619,188.37x = 854,487.09 × 343,551.40
  4. Step 4: Simplify right side
    619,188.37x = 293,560,236,051.43
  5. Step 5: Solve for x
    x = 293,560,236,051.43/619,188.37
  6. Step 6: Final answer
    x = 474,104.89

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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.