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Finding the Fourth Proportional to 551,136,700.80, 826,705,051.20 and 367,470,691.20

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Solution

The fourth proportional to 551,136,700.80, 826,705,051.20 and 367,470,691.20 is: 551,206,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,136,700.80 : 826,705,051.20 = 367,470,691.20 : x
  2. Step 2: Convert to fraction form
    551,136,700.80/826,705,051.20 = 367,470,691.20/x
  3. Step 3: Cross multiply
    551,136,700.80x = 826,705,051.20 × 367,470,691.20
  4. Step 4: Simplify right side
    551,136,700.80x = 303,789,876,582,995,392
  5. Step 5: Solve for x
    x = 303,789,876,582,995,392/551,136,700.80
  6. Step 6: Final answer
    x = 551,206,036.80

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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.