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Finding the Fourth Proportional to 824,361.36, 1,135,676.52 and 774,760.20

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Solution

The fourth proportional to 824,361.36, 1,135,676.52 and 774,760.20 is: 1,067,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,361.36 : 1,135,676.52 = 774,760.20 : x
  2. Step 2: Convert to fraction form
    824,361.36/1,135,676.52 = 774,760.20/x
  3. Step 3: Cross multiply
    824,361.36x = 1,135,676.52 × 774,760.20
  4. Step 4: Simplify right side
    824,361.36x = 879,876,967,770.50
  5. Step 5: Solve for x
    x = 879,876,967,770.50/824,361.36
  6. Step 6: Final answer
    x = 1,067,343.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.