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Finding the Fourth Proportional to 328,563.34, 453,067.33 and 259,531.47

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Solution

The fourth proportional to 328,563.34, 453,067.33 and 259,531.47 is: 357,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,563.34 : 453,067.33 = 259,531.47 : x
  2. Step 2: Convert to fraction form
    328,563.34/453,067.33 = 259,531.47/x
  3. Step 3: Cross multiply
    328,563.34x = 453,067.33 × 259,531.47
  4. Step 4: Simplify right side
    328,563.34x = 117,585,230,163.88
  5. Step 5: Solve for x
    x = 117,585,230,163.88/328,563.34
  6. Step 6: Final answer
    x = 357,876.90

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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.