Home / 821,778.96-1,134,033.21-459,205.80

Finding the Fourth Proportional to 821,778.96, 1,134,033.21 and 459,205.80

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Solution

The fourth proportional to 821,778.96, 1,134,033.21 and 459,205.80 is: 633,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,778.96 : 1,134,033.21 = 459,205.80 : x
  2. Step 2: Convert to fraction form
    821,778.96/1,134,033.21 = 459,205.80/x
  3. Step 3: Cross multiply
    821,778.96x = 1,134,033.21 × 459,205.80
  4. Step 4: Simplify right side
    821,778.96x = 520,754,627,424.62
  5. Step 5: Solve for x
    x = 520,754,627,424.62/821,778.96
  6. Step 6: Final answer
    x = 633,691.85

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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.