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Finding the Fourth Proportional to 339,578.89, 508,702.77 and 197,125.47

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Solution

The fourth proportional to 339,578.89, 508,702.77 and 197,125.47 is: 295,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,578.89 : 508,702.77 = 197,125.47 : x
  2. Step 2: Convert to fraction form
    339,578.89/508,702.77 = 197,125.47/x
  3. Step 3: Cross multiply
    339,578.89x = 508,702.77 × 197,125.47
  4. Step 4: Simplify right side
    339,578.89x = 100,278,272,626.55
  5. Step 5: Solve for x
    x = 100,278,272,626.55/339,578.89
  6. Step 6: Final answer
    x = 295,301.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.