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Finding the Fourth Proportional to 328,190, 452,902.20 and 177,287

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Solution

The fourth proportional to 328,190, 452,902.20 and 177,287 is: 244,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,190 : 452,902.20 = 177,287 : x
  2. Step 2: Convert to fraction form
    328,190/452,902.20 = 177,287/x
  3. Step 3: Cross multiply
    328,190x = 452,902.20 × 177,287
  4. Step 4: Simplify right side
    328,190x = 80,293,672,331.40
  5. Step 5: Solve for x
    x = 80,293,672,331.40/328,190
  6. Step 6: Final answer
    x = 244,656.06

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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.