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Finding the Fourth Proportional to 431,575.70, 595,609.91 and 238,021.27

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Solution

The fourth proportional to 431,575.70, 595,609.91 and 238,021.27 is: 328,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,575.70 : 595,609.91 = 238,021.27 : x
  2. Step 2: Convert to fraction form
    431,575.70/595,609.91 = 238,021.27/x
  3. Step 3: Cross multiply
    431,575.70x = 595,609.91 × 238,021.27
  4. Step 4: Simplify right side
    431,575.70x = 141,767,825,416.23
  5. Step 5: Solve for x
    x = 141,767,825,416.23/431,575.70
  6. Step 6: Final answer
    x = 328,488.90

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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.