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Finding the Fourth Proportional to 339,841.78, 468,980.89 and 186,889.38

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Solution

The fourth proportional to 339,841.78, 468,980.89 and 186,889.38 is: 257,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,841.78 : 468,980.89 = 186,889.38 : x
  2. Step 2: Convert to fraction form
    339,841.78/468,980.89 = 186,889.38/x
  3. Step 3: Cross multiply
    339,841.78x = 468,980.89 × 186,889.38
  4. Step 4: Simplify right side
    339,841.78x = 87,647,545,538.05
  5. Step 5: Solve for x
    x = 87,647,545,538.05/339,841.78
  6. Step 6: Final answer
    x = 257,906.92

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1.5x scale

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.