Home / 619,144.43-854,056.37-389,337.17

Finding the Fourth Proportional to 619,144.43, 854,056.37 and 389,337.17

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Solution

The fourth proportional to 619,144.43, 854,056.37 and 389,337.17 is: 537,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,144.43 : 854,056.37 = 389,337.17 : x
  2. Step 2: Convert to fraction form
    619,144.43/854,056.37 = 389,337.17/x
  3. Step 3: Cross multiply
    619,144.43x = 854,056.37 × 389,337.17
  4. Step 4: Simplify right side
    619,144.43x = 332,515,886,819.33
  5. Step 5: Solve for x
    x = 332,515,886,819.33/619,144.43
  6. Step 6: Final answer
    x = 537,057.06

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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.