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Finding the Fourth Proportional to 260,802,558.45, 391,203,837.68 and 260,802,558.45

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Solution

The fourth proportional to 260,802,558.45, 391,203,837.68 and 260,802,558.45 is: 391,203,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,802,558.45 : 391,203,837.68 = 260,802,558.45 : x
  2. Step 2: Convert to fraction form
    260,802,558.45/391,203,837.68 = 260,802,558.45/x
  3. Step 3: Cross multiply
    260,802,558.45x = 391,203,837.68 × 260,802,558.45
  4. Step 4: Simplify right side
    260,802,558.45x = 102,026,961,741,098,496
  5. Step 5: Solve for x
    x = 102,026,961,741,098,496/260,802,558.45
  6. Step 6: Final answer
    x = 391,203,837.68

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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.