Home / 823,900.80-1,235,851.20-403,996.80

Finding the Fourth Proportional to 823,900.80, 1,235,851.20 and 403,996.80

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Solution

The fourth proportional to 823,900.80, 1,235,851.20 and 403,996.80 is: 605,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,900.80 : 1,235,851.20 = 403,996.80 : x
  2. Step 2: Convert to fraction form
    823,900.80/1,235,851.20 = 403,996.80/x
  3. Step 3: Cross multiply
    823,900.80x = 1,235,851.20 × 403,996.80
  4. Step 4: Simplify right side
    823,900.80x = 499,279,930,076.16
  5. Step 5: Solve for x
    x = 499,279,930,076.16/823,900.80
  6. Step 6: Final answer
    x = 605,995.20

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Half scale
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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.