Home / 639,583.92-882,627.12-353,104.56

Finding the Fourth Proportional to 639,583.92, 882,627.12 and 353,104.56

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Solution

The fourth proportional to 639,583.92, 882,627.12 and 353,104.56 is: 487,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,583.92 : 882,627.12 = 353,104.56 : x
  2. Step 2: Convert to fraction form
    639,583.92/882,627.12 = 353,104.56/x
  3. Step 3: Cross multiply
    639,583.92x = 882,627.12 × 353,104.56
  4. Step 4: Simplify right side
    639,583.92x = 311,659,660,851.67
  5. Step 5: Solve for x
    x = 311,659,660,851.67/639,583.92
  6. Step 6: Final answer
    x = 487,285.02

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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.