Home / 498,736.39-688,260.61-283,890.29

Finding the Fourth Proportional to 498,736.39, 688,260.61 and 283,890.29

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Solution

The fourth proportional to 498,736.39, 688,260.61 and 283,890.29 is: 391,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,736.39 : 688,260.61 = 283,890.29 : x
  2. Step 2: Convert to fraction form
    498,736.39/688,260.61 = 283,890.29/x
  3. Step 3: Cross multiply
    498,736.39x = 688,260.61 × 283,890.29
  4. Step 4: Simplify right side
    498,736.39x = 195,390,501,082.04
  5. Step 5: Solve for x
    x = 195,390,501,082.04/498,736.39
  6. Step 6: Final answer
    x = 391,771.09

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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.