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Finding the Fourth Proportional to 571,990,767.50, 857,858,463.56 and 265,243,021.58

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Solution

The fourth proportional to 571,990,767.50, 857,858,463.56 and 265,243,021.58 is: 397,805,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,990,767.50 : 857,858,463.56 = 265,243,021.58 : x
  2. Step 2: Convert to fraction form
    571,990,767.50/857,858,463.56 = 265,243,021.58/x
  3. Step 3: Cross multiply
    571,990,767.50x = 857,858,463.56 × 265,243,021.58
  4. Step 4: Simplify right side
    571,990,767.50x = 227,540,970,962,630,720
  5. Step 5: Solve for x
    x = 227,540,970,962,630,720/571,990,767.50
  6. Step 6: Final answer
    x = 397,805,321.15

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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.