Home / 823,921.40-1,235,882.10-263,012.60

Finding the Fourth Proportional to 823,921.40, 1,235,882.10 and 263,012.60

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Solution

The fourth proportional to 823,921.40, 1,235,882.10 and 263,012.60 is: 394,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,921.40 : 1,235,882.10 = 263,012.60 : x
  2. Step 2: Convert to fraction form
    823,921.40/1,235,882.10 = 263,012.60/x
  3. Step 3: Cross multiply
    823,921.40x = 1,235,882.10 × 263,012.60
  4. Step 4: Simplify right side
    823,921.40x = 325,052,564,414.46
  5. Step 5: Solve for x
    x = 325,052,564,414.46/823,921.40
  6. Step 6: Final answer
    x = 394,518.90

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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.