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Finding the Fourth Proportional to 622,879.35, 934,319.03 and 611,069.55

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Solution

The fourth proportional to 622,879.35, 934,319.03 and 611,069.55 is: 916,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,879.35 : 934,319.03 = 611,069.55 : x
  2. Step 2: Convert to fraction form
    622,879.35/934,319.03 = 611,069.55/x
  3. Step 3: Cross multiply
    622,879.35x = 934,319.03 × 611,069.55
  4. Step 4: Simplify right side
    622,879.35x = 570,933,906,163.19
  5. Step 5: Solve for x
    x = 570,933,906,163.19/622,879.35
  6. Step 6: Final answer
    x = 916,604.33

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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.