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Finding the Fourth Proportional to 398,601,203.20, 597,901,804.80 and 362,250,638.80

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Solution

The fourth proportional to 398,601,203.20, 597,901,804.80 and 362,250,638.80 is: 543,375,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,203.20 : 597,901,804.80 = 362,250,638.80 : x
  2. Step 2: Convert to fraction form
    398,601,203.20/597,901,804.80 = 362,250,638.80/x
  3. Step 3: Cross multiply
    398,601,203.20x = 597,901,804.80 × 362,250,638.80
  4. Step 4: Simplify right side
    398,601,203.20x = 216,590,310,728,472,896
  5. Step 5: Solve for x
    x = 216,590,310,728,472,896/398,601,203.20
  6. Step 6: Final answer
    x = 543,375,958.20

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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.