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Finding the Fourth Proportional to 339,503.26, 468,319.52 and 211,957.42

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Solution

The fourth proportional to 339,503.26, 468,319.52 and 211,957.42 is: 292,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,503.26 : 468,319.52 = 211,957.42 : x
  2. Step 2: Convert to fraction form
    339,503.26/468,319.52 = 211,957.42/x
  3. Step 3: Cross multiply
    339,503.26x = 468,319.52 × 211,957.42
  4. Step 4: Simplify right side
    339,503.26x = 99,263,797,194.84
  5. Step 5: Solve for x
    x = 99,263,797,194.84/339,503.26
  6. Step 6: Final answer
    x = 292,379.51

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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.