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Finding the Fourth Proportional to 854,763,300.16, 1,179,561,778.56 and 478,419,776

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Solution

The fourth proportional to 854,763,300.16, 1,179,561,778.56 and 478,419,776 is: 660,212,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,763,300.16 : 1,179,561,778.56 = 478,419,776 : x
  2. Step 2: Convert to fraction form
    854,763,300.16/1,179,561,778.56 = 478,419,776/x
  3. Step 3: Cross multiply
    854,763,300.16x = 1,179,561,778.56 × 478,419,776
  4. Step 4: Simplify right side
    854,763,300.16x = 564,325,681,876,836,800
  5. Step 5: Solve for x
    x = 564,325,681,876,836,800/854,763,300.16
  6. Step 6: Final answer
    x = 660,212,811.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.