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Finding the Fourth Proportional to 339,943.70, 510,308.40 and 182,479.70

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Solution

The fourth proportional to 339,943.70, 510,308.40 and 182,479.70 is: 273,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,943.70 : 510,308.40 = 182,479.70 : x
  2. Step 2: Convert to fraction form
    339,943.70/510,308.40 = 182,479.70/x
  3. Step 3: Cross multiply
    339,943.70x = 510,308.40 × 182,479.70
  4. Step 4: Simplify right side
    339,943.70x = 93,120,923,739.48
  5. Step 5: Solve for x
    x = 93,120,923,739.48/339,943.70
  6. Step 6: Final answer
    x = 273,930.43

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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.