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Finding the Fourth Proportional to 652,022,665.20, 978,033,997.80 and 587,525,410.80

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Solution

The fourth proportional to 652,022,665.20, 978,033,997.80 and 587,525,410.80 is: 881,288,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,022,665.20 : 978,033,997.80 = 587,525,410.80 : x
  2. Step 2: Convert to fraction form
    652,022,665.20/978,033,997.80 = 587,525,410.80/x
  3. Step 3: Cross multiply
    652,022,665.20x = 978,033,997.80 × 587,525,410.80
  4. Step 4: Simplify right side
    652,022,665.20x = 574,619,826,333,811,200
  5. Step 5: Solve for x
    x = 574,619,826,333,811,200/652,022,665.20
  6. Step 6: Final answer
    x = 881,288,116.20

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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.