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Finding the Fourth Proportional to 606,194.70, 909,205.65 and 206,853.90

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Solution

The fourth proportional to 606,194.70, 909,205.65 and 206,853.90 is: 310,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,194.70 : 909,205.65 = 206,853.90 : x
  2. Step 2: Convert to fraction form
    606,194.70/909,205.65 = 206,853.90/x
  3. Step 3: Cross multiply
    606,194.70x = 909,205.65 × 206,853.90
  4. Step 4: Simplify right side
    606,194.70x = 188,072,734,604.54
  5. Step 5: Solve for x
    x = 188,072,734,604.54/606,194.70
  6. Step 6: Final answer
    x = 310,251.37

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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.