Home / 685,541.42-1,028,301.12-186,905.42

Finding the Fourth Proportional to 685,541.42, 1,028,301.12 and 186,905.42

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Solution

The fourth proportional to 685,541.42, 1,028,301.12 and 186,905.42 is: 280,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,541.42 : 1,028,301.12 = 186,905.42 : x
  2. Step 2: Convert to fraction form
    685,541.42/1,028,301.12 = 186,905.42/x
  3. Step 3: Cross multiply
    685,541.42x = 1,028,301.12 × 186,905.42
  4. Step 4: Simplify right side
    685,541.42x = 192,195,052,720.07
  5. Step 5: Solve for x
    x = 192,195,052,720.07/685,541.42
  6. Step 6: Final answer
    x = 280,355.13

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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.