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Finding the Fourth Proportional to 505,857,559.30, 697,869,671.37 and 338,647,692.93

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Solution

The fourth proportional to 505,857,559.30, 697,869,671.37 and 338,647,692.93 is: 467,190,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,857,559.30 : 697,869,671.37 = 338,647,692.93 : x
  2. Step 2: Convert to fraction form
    505,857,559.30/697,869,671.37 = 338,647,692.93/x
  3. Step 3: Cross multiply
    505,857,559.30x = 697,869,671.37 × 338,647,692.93
  4. Step 4: Simplify right side
    505,857,559.30x = 236,331,954,177,216,192
  5. Step 5: Solve for x
    x = 236,331,954,177,216,192/505,857,559.30
  6. Step 6: Final answer
    x = 467,190,713.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.