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Finding the Fourth Proportional to 449,320,808.40, 673,981,212.60 and 367,691,470.80

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Solution

The fourth proportional to 449,320,808.40, 673,981,212.60 and 367,691,470.80 is: 551,537,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,320,808.40 : 673,981,212.60 = 367,691,470.80 : x
  2. Step 2: Convert to fraction form
    449,320,808.40/673,981,212.60 = 367,691,470.80/x
  3. Step 3: Cross multiply
    449,320,808.40x = 673,981,212.60 × 367,691,470.80
  4. Step 4: Simplify right side
    449,320,808.40x = 247,817,143,352,461,504
  5. Step 5: Solve for x
    x = 247,817,143,352,461,504/449,320,808.40
  6. Step 6: Final answer
    x = 551,537,206.20

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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.