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Finding the Fourth Proportional to 559,873,136.70, 839,809,705.05 and 273,218,672.70

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Solution

The fourth proportional to 559,873,136.70, 839,809,705.05 and 273,218,672.70 is: 409,828,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873,136.70 : 839,809,705.05 = 273,218,672.70 : x
  2. Step 2: Convert to fraction form
    559,873,136.70/839,809,705.05 = 273,218,672.70/x
  3. Step 3: Cross multiply
    559,873,136.70x = 839,809,705.05 × 273,218,672.70
  4. Step 4: Simplify right side
    559,873,136.70x = 229,451,692,934,339,456
  5. Step 5: Solve for x
    x = 229,451,692,934,339,456/559,873,136.70
  6. Step 6: Final answer
    x = 409,828,009.05

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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.