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Finding the Fourth Proportional to 465,794,389.80, 697,347,891.90 and 465,794,389.80

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Solution

The fourth proportional to 465,794,389.80, 697,347,891.90 and 465,794,389.80 is: 697,347,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,794,389.80 : 697,347,891.90 = 465,794,389.80 : x
  2. Step 2: Convert to fraction form
    465,794,389.80/697,347,891.90 = 465,794,389.80/x
  3. Step 3: Cross multiply
    465,794,389.80x = 697,347,891.90 × 465,794,389.80
  4. Step 4: Simplify right side
    465,794,389.80x = 324,820,735,785,876,864
  5. Step 5: Solve for x
    x = 324,820,735,785,876,864/465,794,389.80
  6. Step 6: Final answer
    x = 697,347,891.90

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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.