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Finding the Fourth Proportional to 551,690,914.56, 827,621,402.40 and 188,100,240

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Solution

The fourth proportional to 551,690,914.56, 827,621,402.40 and 188,100,240 is: 282,179,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,690,914.56 : 827,621,402.40 = 188,100,240 : x
  2. Step 2: Convert to fraction form
    551,690,914.56/827,621,402.40 = 188,100,240/x
  3. Step 3: Cross multiply
    551,690,914.56x = 827,621,402.40 × 188,100,240
  4. Step 4: Simplify right side
    551,690,914.56x = 155,675,784,420,576,576
  5. Step 5: Solve for x
    x = 155,675,784,420,576,576/551,690,914.56
  6. Step 6: Final answer
    x = 282,179,351.36

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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.