Home / 811,684.73-1,120,157.94-449,102.69

Finding the Fourth Proportional to 811,684.73, 1,120,157.94 and 449,102.69

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Solution

The fourth proportional to 811,684.73, 1,120,157.94 and 449,102.69 is: 619,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,684.73 : 1,120,157.94 = 449,102.69 : x
  2. Step 2: Convert to fraction form
    811,684.73/1,120,157.94 = 449,102.69/x
  3. Step 3: Cross multiply
    811,684.73x = 1,120,157.94 × 449,102.69
  4. Step 4: Simplify right side
    811,684.73x = 503,065,936,232.56
  5. Step 5: Solve for x
    x = 503,065,936,232.56/811,684.73
  6. Step 6: Final answer
    x = 619,779.97

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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.