Home / 811,766.64-1,120,198.32-449,183.76

Finding the Fourth Proportional to 811,766.64, 1,120,198.32 and 449,183.76

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Solution

The fourth proportional to 811,766.64, 1,120,198.32 and 449,183.76 is: 619,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,766.64 : 1,120,198.32 = 449,183.76 : x
  2. Step 2: Convert to fraction form
    811,766.64/1,120,198.32 = 449,183.76/x
  3. Step 3: Cross multiply
    811,766.64x = 1,120,198.32 × 449,183.76
  4. Step 4: Simplify right side
    811,766.64x = 503,174,893,323.28
  5. Step 5: Solve for x
    x = 503,174,893,323.28/811,766.64
  6. Step 6: Final answer
    x = 619,851.65

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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.