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Finding the Fourth Proportional to 611,995,470.30, 917,993,205.45 and 441,084,044.70

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Solution

The fourth proportional to 611,995,470.30, 917,993,205.45 and 441,084,044.70 is: 661,626,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,995,470.30 : 917,993,205.45 = 441,084,044.70 : x
  2. Step 2: Convert to fraction form
    611,995,470.30/917,993,205.45 = 441,084,044.70/x
  3. Step 3: Cross multiply
    611,995,470.30x = 917,993,205.45 × 441,084,044.70
  4. Step 4: Simplify right side
    611,995,470.30x = 404,912,156,067,004,096
  5. Step 5: Solve for x
    x = 404,912,156,067,004,096/611,995,470.30
  6. Step 6: Final answer
    x = 661,626,067.05

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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.