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Finding the Fourth Proportional to 559,873,125.20, 839,809,687.80 and 273,218,661.20

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Solution

The fourth proportional to 559,873,125.20, 839,809,687.80 and 273,218,661.20 is: 409,827,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873,125.20 : 839,809,687.80 = 273,218,661.20 : x
  2. Step 2: Convert to fraction form
    559,873,125.20/839,809,687.80 = 273,218,661.20/x
  3. Step 3: Cross multiply
    559,873,125.20x = 839,809,687.80 × 273,218,661.20
  4. Step 4: Simplify right side
    559,873,125.20x = 229,451,678,563,505,952
  5. Step 5: Solve for x
    x = 229,451,678,563,505,952/559,873,125.20
  6. Step 6: Final answer
    x = 409,827,991.80

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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.