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Finding the Fourth Proportional to 619,648.85, 854,633.33 and 448,209.92

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Solution

The fourth proportional to 619,648.85, 854,633.33 and 448,209.92 is: 618,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,648.85 : 854,633.33 = 448,209.92 : x
  2. Step 2: Convert to fraction form
    619,648.85/854,633.33 = 448,209.92/x
  3. Step 3: Cross multiply
    619,648.85x = 854,633.33 × 448,209.92
  4. Step 4: Simplify right side
    619,648.85x = 383,055,138,044.96
  5. Step 5: Solve for x
    x = 383,055,138,044.96/619,648.85
  6. Step 6: Final answer
    x = 618,180.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.