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Finding the Fourth Proportional to 469,689,793.20, 704,534,689.80 and 347,245,786.80

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Solution

The fourth proportional to 469,689,793.20, 704,534,689.80 and 347,245,786.80 is: 520,868,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,689,793.20 : 704,534,689.80 = 347,245,786.80 : x
  2. Step 2: Convert to fraction form
    469,689,793.20/704,534,689.80 = 347,245,786.80/x
  3. Step 3: Cross multiply
    469,689,793.20x = 704,534,689.80 × 347,245,786.80
  4. Step 4: Simplify right side
    469,689,793.20x = 244,646,702,687,494,912
  5. Step 5: Solve for x
    x = 244,646,702,687,494,912/469,689,793.20
  6. Step 6: Final answer
    x = 520,868,680.20

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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.