Home / 498,736.52-688,260.78-283,890.41

Finding the Fourth Proportional to 498,736.52, 688,260.78 and 283,890.41

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Solution

The fourth proportional to 498,736.52, 688,260.78 and 283,890.41 is: 391,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,736.52 : 688,260.78 = 283,890.41 : x
  2. Step 2: Convert to fraction form
    498,736.52/688,260.78 = 283,890.41/x
  3. Step 3: Cross multiply
    498,736.52x = 688,260.78 × 283,890.41
  4. Step 4: Simplify right side
    498,736.52x = 195,390,635,021.12
  5. Step 5: Solve for x
    x = 195,390,635,021.12/498,736.52
  6. Step 6: Final answer
    x = 391,771.26

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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.