Home / 823,912.80-1,235,869.20-291,451.20

Finding the Fourth Proportional to 823,912.80, 1,235,869.20 and 291,451.20

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Solution

The fourth proportional to 823,912.80, 1,235,869.20 and 291,451.20 is: 437,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,912.80 : 1,235,869.20 = 291,451.20 : x
  2. Step 2: Convert to fraction form
    823,912.80/1,235,869.20 = 291,451.20/x
  3. Step 3: Cross multiply
    823,912.80x = 1,235,869.20 × 291,451.20
  4. Step 4: Simplify right side
    823,912.80x = 360,195,561,383.04
  5. Step 5: Solve for x
    x = 360,195,561,383.04/823,912.80
  6. Step 6: Final answer
    x = 437,176.80

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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.