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Finding the Fourth Proportional to 934,617,762, 1,401,628,493.88 and 321,054,037.20

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Solution

The fourth proportional to 934,617,762, 1,401,628,493.88 and 321,054,037.20 is: 481,478,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,617,762 : 1,401,628,493.88 = 321,054,037.20 : x
  2. Step 2: Convert to fraction form
    934,617,762/1,401,628,493.88 = 321,054,037.20/x
  3. Step 3: Cross multiply
    934,617,762x = 1,401,628,493.88 × 321,054,037.20
  4. Step 4: Simplify right side
    934,617,762x = 449,998,486,614,729,536
  5. Step 5: Solve for x
    x = 449,998,486,614,729,536/934,617,762
  6. Step 6: Final answer
    x = 481,478,637.48

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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.