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Finding the Fourth Proportional to 383,454,604.40, 575,181,906.60 and 220,195,929.20

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Solution

The fourth proportional to 383,454,604.40, 575,181,906.60 and 220,195,929.20 is: 330,293,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,454,604.40 : 575,181,906.60 = 220,195,929.20 : x
  2. Step 2: Convert to fraction form
    383,454,604.40/575,181,906.60 = 220,195,929.20/x
  3. Step 3: Cross multiply
    383,454,604.40x = 575,181,906.60 × 220,195,929.20
  4. Step 4: Simplify right side
    383,454,604.40x = 126,652,714,382,814,608
  5. Step 5: Solve for x
    x = 126,652,714,382,814,608/383,454,604.40
  6. Step 6: Final answer
    x = 330,293,893.80

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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.