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Finding the Fourth Proportional to 328,639.43, 453,522.71 and 177,736.43

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Solution

The fourth proportional to 328,639.43, 453,522.71 and 177,736.43 is: 245,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,639.43 : 453,522.71 = 177,736.43 : x
  2. Step 2: Convert to fraction form
    328,639.43/453,522.71 = 177,736.43/x
  3. Step 3: Cross multiply
    328,639.43x = 453,522.71 × 177,736.43
  4. Step 4: Simplify right side
    328,639.43x = 80,607,507,843.67
  5. Step 5: Solve for x
    x = 80,607,507,843.67/328,639.43
  6. Step 6: Final answer
    x = 245,276.44

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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.