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Finding the Fourth Proportional to 383,731,236.20, 538,433,054.20 and 383,731,236.20

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Solution

The fourth proportional to 383,731,236.20, 538,433,054.20 and 383,731,236.20 is: 538,433,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,731,236.20 : 538,433,054.20 = 383,731,236.20 : x
  2. Step 2: Convert to fraction form
    383,731,236.20/538,433,054.20 = 383,731,236.20/x
  3. Step 3: Cross multiply
    383,731,236.20x = 538,433,054.20 × 383,731,236.20
  4. Step 4: Simplify right side
    383,731,236.20x = 206,613,581,499,107,616
  5. Step 5: Solve for x
    x = 206,613,581,499,107,616/383,731,236.20
  6. Step 6: Final answer
    x = 538,433,054.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.