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Finding the Fourth Proportional to 382,469,201.20, 573,703,801.80 and 373,966,145.20

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Solution

The fourth proportional to 382,469,201.20, 573,703,801.80 and 373,966,145.20 is: 560,949,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,469,201.20 : 573,703,801.80 = 373,966,145.20 : x
  2. Step 2: Convert to fraction form
    382,469,201.20/573,703,801.80 = 373,966,145.20/x
  3. Step 3: Cross multiply
    382,469,201.20x = 573,703,801.80 × 373,966,145.20
  4. Step 4: Simplify right side
    382,469,201.20x = 214,545,799,245,730,784
  5. Step 5: Solve for x
    x = 214,545,799,245,730,784/382,469,201.20
  6. Step 6: Final answer
    x = 560,949,217.80

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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.