Home / 685,937.70-1,028,906.55-187,301.70

Finding the Fourth Proportional to 685,937.70, 1,028,906.55 and 187,301.70

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Solution

The fourth proportional to 685,937.70, 1,028,906.55 and 187,301.70 is: 280,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,937.70 : 1,028,906.55 = 187,301.70 : x
  2. Step 2: Convert to fraction form
    685,937.70/1,028,906.55 = 187,301.70/x
  3. Step 3: Cross multiply
    685,937.70x = 1,028,906.55 × 187,301.70
  4. Step 4: Simplify right side
    685,937.70x = 192,715,945,956.14
  5. Step 5: Solve for x
    x = 192,715,945,956.14/685,937.70
  6. Step 6: Final answer
    x = 280,952.55

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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.