Home / 685,532.92-1,028,288.40-186,896.92

Finding the Fourth Proportional to 685,532.92, 1,028,288.40 and 186,896.92

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Solution

The fourth proportional to 685,532.92, 1,028,288.40 and 186,896.92 is: 280,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,532.92 : 1,028,288.40 = 186,896.92 : x
  2. Step 2: Convert to fraction form
    685,532.92/1,028,288.40 = 186,896.92/x
  3. Step 3: Cross multiply
    685,532.92x = 1,028,288.40 × 186,896.92
  4. Step 4: Simplify right side
    685,532.92x = 192,183,934,831.73
  5. Step 5: Solve for x
    x = 192,183,934,831.73/685,532.92
  6. Step 6: Final answer
    x = 280,342.39

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Double scale
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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.