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Finding the Fourth Proportional to 563,635,764.80, 845,453,647.20 and 379,969,755.20

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Solution

The fourth proportional to 563,635,764.80, 845,453,647.20 and 379,969,755.20 is: 569,954,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,635,764.80 : 845,453,647.20 = 379,969,755.20 : x
  2. Step 2: Convert to fraction form
    563,635,764.80/845,453,647.20 = 379,969,755.20/x
  3. Step 3: Cross multiply
    563,635,764.80x = 845,453,647.20 × 379,969,755.20
  4. Step 4: Simplify right side
    563,635,764.80x = 321,246,815,359,531,200
  5. Step 5: Solve for x
    x = 321,246,815,359,531,200/563,635,764.80
  6. Step 6: Final answer
    x = 569,954,632.80

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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.