Home / 823,904.80-1,235,857.20-404,000.80

Finding the Fourth Proportional to 823,904.80, 1,235,857.20 and 404,000.80

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Solution

The fourth proportional to 823,904.80, 1,235,857.20 and 404,000.80 is: 606,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,904.80 : 1,235,857.20 = 404,000.80 : x
  2. Step 2: Convert to fraction form
    823,904.80/1,235,857.20 = 404,000.80/x
  3. Step 3: Cross multiply
    823,904.80x = 1,235,857.20 × 404,000.80
  4. Step 4: Simplify right side
    823,904.80x = 499,287,297,485.76
  5. Step 5: Solve for x
    x = 499,287,297,485.76/823,904.80
  6. Step 6: Final answer
    x = 606,001.20

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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.