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Finding the Fourth Proportional to 339,505.26, 468,322.28 and 211,959.42

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Solution

The fourth proportional to 339,505.26, 468,322.28 and 211,959.42 is: 292,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,505.26 : 468,322.28 = 211,959.42 : x
  2. Step 2: Convert to fraction form
    339,505.26/468,322.28 = 211,959.42/x
  3. Step 3: Cross multiply
    339,505.26x = 468,322.28 × 211,959.42
  4. Step 4: Simplify right side
    339,505.26x = 99,265,318,841.88
  5. Step 5: Solve for x
    x = 99,265,318,841.88/339,505.26
  6. Step 6: Final answer
    x = 292,382.27

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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.