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Finding the Fourth Proportional to 622,161.40, 932,550.90 and 341,879.80

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Solution

The fourth proportional to 622,161.40, 932,550.90 and 341,879.80 is: 512,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,161.40 : 932,550.90 = 341,879.80 : x
  2. Step 2: Convert to fraction form
    622,161.40/932,550.90 = 341,879.80/x
  3. Step 3: Cross multiply
    622,161.40x = 932,550.90 × 341,879.80
  4. Step 4: Simplify right side
    622,161.40x = 318,820,315,181.82
  5. Step 5: Solve for x
    x = 318,820,315,181.82/622,161.40
  6. Step 6: Final answer
    x = 512,439.88

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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.