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Finding the Fourth Proportional to 262,926,704.80, 394,390,057.20 and 262,926,704.80

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Solution

The fourth proportional to 262,926,704.80, 394,390,057.20 and 262,926,704.80 is: 394,390,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,926,704.80 : 394,390,057.20 = 262,926,704.80 : x
  2. Step 2: Convert to fraction form
    262,926,704.80/394,390,057.20 = 262,926,704.80/x
  3. Step 3: Cross multiply
    262,926,704.80x = 394,390,057.20 × 262,926,704.80
  4. Step 4: Simplify right side
    262,926,704.80x = 103,695,678,145,479,520
  5. Step 5: Solve for x
    x = 103,695,678,145,479,520/262,926,704.80
  6. Step 6: Final answer
    x = 394,390,057.20

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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.