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Finding the Fourth Proportional to 539,231,190.80, 808,846,786.20 and 539,231,190.80

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Solution

The fourth proportional to 539,231,190.80, 808,846,786.20 and 539,231,190.80 is: 808,846,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,231,190.80 : 808,846,786.20 = 539,231,190.80 : x
  2. Step 2: Convert to fraction form
    539,231,190.80/808,846,786.20 = 539,231,190.80/x
  3. Step 3: Cross multiply
    539,231,190.80x = 808,846,786.20 × 539,231,190.80
  4. Step 4: Simplify right side
    539,231,190.80x = 436,155,415,697,379,008
  5. Step 5: Solve for x
    x = 436,155,415,697,379,008/539,231,190.80
  6. Step 6: Final answer
    x = 808,846,786.20

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Double scale
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1.5x scale

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.