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Finding the Fourth Proportional to 339,328.14, 508,818.15 and 179,490.33

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Solution

The fourth proportional to 339,328.14, 508,818.15 and 179,490.33 is: 269,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,328.14 : 508,818.15 = 179,490.33 : x
  2. Step 2: Convert to fraction form
    339,328.14/508,818.15 = 179,490.33/x
  3. Step 3: Cross multiply
    339,328.14x = 508,818.15 × 179,490.33
  4. Step 4: Simplify right side
    339,328.14x = 91,327,937,653.49
  5. Step 5: Solve for x
    x = 91,327,937,653.49/339,328.14
  6. Step 6: Final answer
    x = 269,143.42

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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.