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Finding the Fourth Proportional to 328,739, 453,660.36 and 177,836

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Solution

The fourth proportional to 328,739, 453,660.36 and 177,836 is: 245,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,739 : 453,660.36 = 177,836 : x
  2. Step 2: Convert to fraction form
    328,739/453,660.36 = 177,836/x
  3. Step 3: Cross multiply
    328,739x = 453,660.36 × 177,836
  4. Step 4: Simplify right side
    328,739x = 80,677,143,780.96
  5. Step 5: Solve for x
    x = 80,677,143,780.96/328,739
  6. Step 6: Final answer
    x = 245,413.97

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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.