Home / 499,839.17-689,060.52-356,350.10

Finding the Fourth Proportional to 499,839.17, 689,060.52 and 356,350.10

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Solution

The fourth proportional to 499,839.17, 689,060.52 and 356,350.10 is: 491,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,839.17 : 689,060.52 = 356,350.10 : x
  2. Step 2: Convert to fraction form
    499,839.17/689,060.52 = 356,350.10/x
  3. Step 3: Cross multiply
    499,839.17x = 689,060.52 × 356,350.10
  4. Step 4: Simplify right side
    499,839.17x = 245,546,785,208.05
  5. Step 5: Solve for x
    x = 245,546,785,208.05/499,839.17
  6. Step 6: Final answer
    x = 491,251.59

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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.