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Finding the Fourth Proportional to 323,406,502.80, 485,109,754.20 and 246,878,998.80

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Solution

The fourth proportional to 323,406,502.80, 485,109,754.20 and 246,878,998.80 is: 370,318,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,406,502.80 : 485,109,754.20 = 246,878,998.80 : x
  2. Step 2: Convert to fraction form
    323,406,502.80/485,109,754.20 = 246,878,998.80/x
  3. Step 3: Cross multiply
    323,406,502.80x = 485,109,754.20 × 246,878,998.80
  4. Step 4: Simplify right side
    323,406,502.80x = 119,763,410,425,010,096
  5. Step 5: Solve for x
    x = 119,763,410,425,010,096/323,406,502.80
  6. Step 6: Final answer
    x = 370,318,498.20

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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.