Home / 400,974.56-553,344.87-219,693.36

Finding the Fourth Proportional to 400,974.56, 553,344.87 and 219,693.36

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Solution

The fourth proportional to 400,974.56, 553,344.87 and 219,693.36 is: 303,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,974.56 : 553,344.87 = 219,693.36 : x
  2. Step 2: Convert to fraction form
    400,974.56/553,344.87 = 219,693.36/x
  3. Step 3: Cross multiply
    400,974.56x = 553,344.87 × 219,693.36
  4. Step 4: Simplify right side
    400,974.56x = 121,566,193,729.06
  5. Step 5: Solve for x
    x = 121,566,193,729.06/400,974.56
  6. Step 6: Final answer
    x = 303,176.83

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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.