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Finding the Fourth Proportional to 619,198, 854,530.56 and 347,282

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Solution

The fourth proportional to 619,198, 854,530.56 and 347,282 is: 479,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,198 : 854,530.56 = 347,282 : x
  2. Step 2: Convert to fraction form
    619,198/854,530.56 = 347,282/x
  3. Step 3: Cross multiply
    619,198x = 854,530.56 × 347,282
  4. Step 4: Simplify right side
    619,198x = 296,763,081,937.92
  5. Step 5: Solve for x
    x = 296,763,081,937.92/619,198
  6. Step 6: Final answer
    x = 479,270.09

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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.