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Finding the Fourth Proportional to 449,320,712.40, 673,981,068.60 and 367,691,374.80

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Solution

The fourth proportional to 449,320,712.40, 673,981,068.60 and 367,691,374.80 is: 551,537,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,320,712.40 : 673,981,068.60 = 367,691,374.80 : x
  2. Step 2: Convert to fraction form
    449,320,712.40/673,981,068.60 = 367,691,374.80/x
  3. Step 3: Cross multiply
    449,320,712.40x = 673,981,068.60 × 367,691,374.80
  4. Step 4: Simplify right side
    449,320,712.40x = 247,817,025,702,707,136
  5. Step 5: Solve for x
    x = 247,817,025,702,707,136/449,320,712.40
  6. Step 6: Final answer
    x = 551,537,062.20

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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.