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Finding the Fourth Proportional to 458,969,879.80, 633,359,964.18 and 250,121,512.90

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Solution

The fourth proportional to 458,969,879.80, 633,359,964.18 and 250,121,512.90 is: 345,157,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,969,879.80 : 633,359,964.18 = 250,121,512.90 : x
  2. Step 2: Convert to fraction form
    458,969,879.80/633,359,964.18 = 250,121,512.90/x
  3. Step 3: Cross multiply
    458,969,879.80x = 633,359,964.18 × 250,121,512.90
  4. Step 4: Simplify right side
    458,969,879.80x = 158,416,952,450,991,392
  5. Step 5: Solve for x
    x = 158,416,952,450,991,392/458,969,879.80
  6. Step 6: Final answer
    x = 345,157,622.37

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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.