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Finding the Fourth Proportional to 1,373,439.25, 1,895,346.17 and 769,827.25

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Solution

The fourth proportional to 1,373,439.25, 1,895,346.17 and 769,827.25 is: 1,062,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,439.25 : 1,895,346.17 = 769,827.25 : x
  2. Step 2: Convert to fraction form
    1,373,439.25/1,895,346.17 = 769,827.25/x
  3. Step 3: Cross multiply
    1,373,439.25x = 1,895,346.17 × 769,827.25
  4. Step 4: Simplify right side
    1,373,439.25x = 1,459,089,129,849.13
  5. Step 5: Solve for x
    x = 1,459,089,129,849.13/1,373,439.25
  6. Step 6: Final answer
    x = 1,062,361.61

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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.