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Finding the Fourth Proportional to 927,561.22, 1,397,659.90 and 762,772.66

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Solution

The fourth proportional to 927,561.22, 1,397,659.90 and 762,772.66 is: 1,149,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,561.22 : 1,397,659.90 = 762,772.66 : x
  2. Step 2: Convert to fraction form
    927,561.22/1,397,659.90 = 762,772.66/x
  3. Step 3: Cross multiply
    927,561.22x = 1,397,659.90 × 762,772.66
  4. Step 4: Simplify right side
    927,561.22x = 1,066,096,759,698.33
  5. Step 5: Solve for x
    x = 1,066,096,759,698.33/927,561.22
  6. Step 6: Final answer
    x = 1,149,354.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.