Home / 823,664.80-1,236,296.12-397,500.54

Finding the Fourth Proportional to 823,664.80, 1,236,296.12 and 397,500.54

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Solution

The fourth proportional to 823,664.80, 1,236,296.12 and 397,500.54 is: 596,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,664.80 : 1,236,296.12 = 397,500.54 : x
  2. Step 2: Convert to fraction form
    823,664.80/1,236,296.12 = 397,500.54/x
  3. Step 3: Cross multiply
    823,664.80x = 1,236,296.12 × 397,500.54
  4. Step 4: Simplify right side
    823,664.80x = 491,428,375,299.91
  5. Step 5: Solve for x
    x = 491,428,375,299.91/823,664.80
  6. Step 6: Final answer
    x = 596,636.37

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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.