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Finding the Fourth Proportional to 619,771.44, 927,663.93 and 319,843.41

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Solution

The fourth proportional to 619,771.44, 927,663.93 and 319,843.41 is: 478,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,771.44 : 927,663.93 = 319,843.41 : x
  2. Step 2: Convert to fraction form
    619,771.44/927,663.93 = 319,843.41/x
  3. Step 3: Cross multiply
    619,771.44x = 927,663.93 × 319,843.41
  4. Step 4: Simplify right side
    619,771.44x = 296,707,194,705.20
  5. Step 5: Solve for x
    x = 296,707,194,705.20/619,771.44
  6. Step 6: Final answer
    x = 478,736.48

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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.