Home / 685,541.44-1,028,301.12-186,905.44

Finding the Fourth Proportional to 685,541.44, 1,028,301.12 and 186,905.44

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Solution

The fourth proportional to 685,541.44, 1,028,301.12 and 186,905.44 is: 280,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,541.44 : 1,028,301.12 = 186,905.44 : x
  2. Step 2: Convert to fraction form
    685,541.44/1,028,301.12 = 186,905.44/x
  3. Step 3: Cross multiply
    685,541.44x = 1,028,301.12 × 186,905.44
  4. Step 4: Simplify right side
    685,541.44x = 192,195,073,286.09
  5. Step 5: Solve for x
    x = 192,195,073,286.09/685,541.44
  6. Step 6: Final answer
    x = 280,355.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.