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Finding the Fourth Proportional to 404,257,322.80, 606,385,984.20 and 373,646,321.20

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Solution

The fourth proportional to 404,257,322.80, 606,385,984.20 and 373,646,321.20 is: 560,469,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,257,322.80 : 606,385,984.20 = 373,646,321.20 : x
  2. Step 2: Convert to fraction form
    404,257,322.80/606,385,984.20 = 373,646,321.20/x
  3. Step 3: Cross multiply
    404,257,322.80x = 606,385,984.20 × 373,646,321.20
  4. Step 4: Simplify right side
    404,257,322.80x = 226,573,892,223,571,328
  5. Step 5: Solve for x
    x = 226,573,892,223,571,328/404,257,322.80
  6. Step 6: Final answer
    x = 560,469,481.80

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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.