Home / 412,961.23-619,310.63-280,691.47

Finding the Fourth Proportional to 412,961.23, 619,310.63 and 280,691.47

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Solution

The fourth proportional to 412,961.23, 619,310.63 and 280,691.47 is: 420,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,961.23 : 619,310.63 = 280,691.47 : x
  2. Step 2: Convert to fraction form
    412,961.23/619,310.63 = 280,691.47/x
  3. Step 3: Cross multiply
    412,961.23x = 619,310.63 × 280,691.47
  4. Step 4: Simplify right side
    412,961.23x = 173,835,209,717.87
  5. Step 5: Solve for x
    x = 173,835,209,717.87/412,961.23
  6. Step 6: Final answer
    x = 420,948.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.