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Finding the Fourth Proportional to 339,453.29, 468,445.83 and 186,491.78

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Solution

The fourth proportional to 339,453.29, 468,445.83 and 186,491.78 is: 257,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,453.29 : 468,445.83 = 186,491.78 : x
  2. Step 2: Convert to fraction form
    339,453.29/468,445.83 = 186,491.78/x
  3. Step 3: Cross multiply
    339,453.29x = 468,445.83 × 186,491.78
  4. Step 4: Simplify right side
    339,453.29x = 87,361,296,670.28
  5. Step 5: Solve for x
    x = 87,361,296,670.28/339,453.29
  6. Step 6: Final answer
    x = 257,358.82

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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.