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Finding the Fourth Proportional to 328,894.66, 453,874.64 and 177,991.66

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Solution

The fourth proportional to 328,894.66, 453,874.64 and 177,991.66 is: 245,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,894.66 : 453,874.64 = 177,991.66 : x
  2. Step 2: Convert to fraction form
    328,894.66/453,874.64 = 177,991.66/x
  3. Step 3: Cross multiply
    328,894.66x = 453,874.64 × 177,991.66
  4. Step 4: Simplify right side
    328,894.66x = 80,785,899,715.54
  5. Step 5: Solve for x
    x = 80,785,899,715.54/328,894.66
  6. Step 6: Final answer
    x = 245,628.49

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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.