Home / 1,266,383.62-1,747,612.28-685,612.86

Finding the Fourth Proportional to 1,266,383.62, 1,747,612.28 and 685,612.86

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Solution

The fourth proportional to 1,266,383.62, 1,747,612.28 and 685,612.86 is: 946,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,383.62 : 1,747,612.28 = 685,612.86 : x
  2. Step 2: Convert to fraction form
    1,266,383.62/1,747,612.28 = 685,612.86/x
  3. Step 3: Cross multiply
    1,266,383.62x = 1,747,612.28 × 685,612.86
  4. Step 4: Simplify right side
    1,266,383.62x = 1,198,185,459,158.45
  5. Step 5: Solve for x
    x = 1,198,185,459,158.45/1,266,383.62
  6. Step 6: Final answer
    x = 946,147.31

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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.