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Finding the Fourth Proportional to 622,961.20, 934,879.20 and 268,229.80

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Solution

The fourth proportional to 622,961.20, 934,879.20 and 268,229.80 is: 402,533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,961.20 : 934,879.20 = 268,229.80 : x
  2. Step 2: Convert to fraction form
    622,961.20/934,879.20 = 268,229.80/x
  3. Step 3: Cross multiply
    622,961.20x = 934,879.20 × 268,229.80
  4. Step 4: Simplify right side
    622,961.20x = 250,762,460,840.16
  5. Step 5: Solve for x
    x = 250,762,460,840.16/622,961.20
  6. Step 6: Final answer
    x = 402,533.03

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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.