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Finding the Fourth Proportional to 321,732,001.80, 481,641,408.90 and 321,732,001.80

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Solution

The fourth proportional to 321,732,001.80, 481,641,408.90 and 321,732,001.80 is: 481,641,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,732,001.80 : 481,641,408.90 = 321,732,001.80 : x
  2. Step 2: Convert to fraction form
    321,732,001.80/481,641,408.90 = 321,732,001.80/x
  3. Step 3: Cross multiply
    321,732,001.80x = 481,641,408.90 × 321,732,001.80
  4. Step 4: Simplify right side
    321,732,001.80x = 154,959,454,635,169,344
  5. Step 5: Solve for x
    x = 154,959,454,635,169,344/321,732,001.80
  6. Step 6: Final answer
    x = 481,641,408.90

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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.