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Finding the Fourth Proportional to 328,880.28, 453,855.24 and 177,977.28

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Solution

The fourth proportional to 328,880.28, 453,855.24 and 177,977.28 is: 245,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,880.28 : 453,855.24 = 177,977.28 : x
  2. Step 2: Convert to fraction form
    328,880.28/453,855.24 = 177,977.28/x
  3. Step 3: Cross multiply
    328,880.28x = 453,855.24 × 177,977.28
  4. Step 4: Simplify right side
    328,880.28x = 80,775,921,128.95
  5. Step 5: Solve for x
    x = 80,775,921,128.95/328,880.28
  6. Step 6: Final answer
    x = 245,608.89

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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.