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Finding the Fourth Proportional to 269,414,337.80, 404,121,506.70 and 243,586,305.20

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Solution

The fourth proportional to 269,414,337.80, 404,121,506.70 and 243,586,305.20 is: 365,379,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,414,337.80 : 404,121,506.70 = 243,586,305.20 : x
  2. Step 2: Convert to fraction form
    269,414,337.80/404,121,506.70 = 243,586,305.20/x
  3. Step 3: Cross multiply
    269,414,337.80x = 404,121,506.70 × 243,586,305.20
  4. Step 4: Simplify right side
    269,414,337.80x = 98,438,464,668,910,032
  5. Step 5: Solve for x
    x = 98,438,464,668,910,032/269,414,337.80
  6. Step 6: Final answer
    x = 365,379,457.80

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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.