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Finding the Fourth Proportional to 622,843.80, 934,265.70 and 510,650.70

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Solution

The fourth proportional to 622,843.80, 934,265.70 and 510,650.70 is: 765,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,843.80 : 934,265.70 = 510,650.70 : x
  2. Step 2: Convert to fraction form
    622,843.80/934,265.70 = 510,650.70/x
  3. Step 3: Cross multiply
    622,843.80x = 934,265.70 × 510,650.70
  4. Step 4: Simplify right side
    622,843.80x = 477,083,433,690.99
  5. Step 5: Solve for x
    x = 477,083,433,690.99/622,843.80
  6. Step 6: Final answer
    x = 765,976.05

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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.