Home / 626,103.28-863,063.82-383,936.80

Finding the Fourth Proportional to 626,103.28, 863,063.82 and 383,936.80

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Solution

The fourth proportional to 626,103.28, 863,063.82 and 383,936.80 is: 529,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,103.28 : 863,063.82 = 383,936.80 : x
  2. Step 2: Convert to fraction form
    626,103.28/863,063.82 = 383,936.80/x
  3. Step 3: Cross multiply
    626,103.28x = 863,063.82 × 383,936.80
  4. Step 4: Simplify right side
    626,103.28x = 331,361,961,246.58
  5. Step 5: Solve for x
    x = 331,361,961,246.58/626,103.28
  6. Step 6: Final answer
    x = 529,244.89

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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.