Home / 639,176.66-882,383.13-397,537.13

Finding the Fourth Proportional to 639,176.66, 882,383.13 and 397,537.13

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Solution

The fourth proportional to 639,176.66, 882,383.13 and 397,537.13 is: 548,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,176.66 : 882,383.13 = 397,537.13 : x
  2. Step 2: Convert to fraction form
    639,176.66/882,383.13 = 397,537.13/x
  3. Step 3: Cross multiply
    639,176.66x = 882,383.13 × 397,537.13
  4. Step 4: Simplify right side
    639,176.66x = 350,780,057,060.62
  5. Step 5: Solve for x
    x = 350,780,057,060.62/639,176.66
  6. Step 6: Final answer
    x = 548,799.85

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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.