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Finding the Fourth Proportional to 383,981,567.20, 575,972,350.80 and 383,981,567.20

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Solution

The fourth proportional to 383,981,567.20, 575,972,350.80 and 383,981,567.20 is: 575,972,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,981,567.20 : 575,972,350.80 = 383,981,567.20 : x
  2. Step 2: Convert to fraction form
    383,981,567.20/575,972,350.80 = 383,981,567.20/x
  3. Step 3: Cross multiply
    383,981,567.20x = 575,972,350.80 × 383,981,567.20
  4. Step 4: Simplify right side
    383,981,567.20x = 221,162,765,924,052,160
  5. Step 5: Solve for x
    x = 221,162,765,924,052,160/383,981,567.20
  6. Step 6: Final answer
    x = 575,972,350.80

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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.