Home / 639,671.43-882,723.45-353,185.37

Finding the Fourth Proportional to 639,671.43, 882,723.45 and 353,185.37

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Solution

The fourth proportional to 639,671.43, 882,723.45 and 353,185.37 is: 487,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,671.43 : 882,723.45 = 353,185.37 : x
  2. Step 2: Convert to fraction form
    639,671.43/882,723.45 = 353,185.37/x
  3. Step 3: Cross multiply
    639,671.43x = 882,723.45 × 353,185.37
  4. Step 4: Simplify right side
    639,671.43x = 311,765,003,882.31
  5. Step 5: Solve for x
    x = 311,765,003,882.31/639,671.43
  6. Step 6: Final answer
    x = 487,383.04

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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.