Home / 639,515.18-882,507.82-353,029.12

Finding the Fourth Proportional to 639,515.18, 882,507.82 and 353,029.12

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Solution

The fourth proportional to 639,515.18, 882,507.82 and 353,029.12 is: 487,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,515.18 : 882,507.82 = 353,029.12 : x
  2. Step 2: Convert to fraction form
    639,515.18/882,507.82 = 353,029.12/x
  3. Step 3: Cross multiply
    639,515.18x = 882,507.82 × 353,029.12
  4. Step 4: Simplify right side
    639,515.18x = 311,550,952,910.03
  5. Step 5: Solve for x
    x = 311,550,952,910.03/639,515.18
  6. Step 6: Final answer
    x = 487,167.41

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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.