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Finding the Fourth Proportional to 262,893,010.30, 394,339,515.45 and 262,893,010.30

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Solution

The fourth proportional to 262,893,010.30, 394,339,515.45 and 262,893,010.30 is: 394,339,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,893,010.30 : 394,339,515.45 = 262,893,010.30 : x
  2. Step 2: Convert to fraction form
    262,893,010.30/394,339,515.45 = 262,893,010.30/x
  3. Step 3: Cross multiply
    262,893,010.30x = 394,339,515.45 × 262,893,010.30
  4. Step 4: Simplify right side
    262,893,010.30x = 103,669,102,296,893,856
  5. Step 5: Solve for x
    x = 103,669,102,296,893,856/262,893,010.30
  6. Step 6: Final answer
    x = 394,339,515.45

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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.