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Finding the Fourth Proportional to 1,064,895.12, 1,469,553.57 and 682,921.26

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Solution

The fourth proportional to 1,064,895.12, 1,469,553.57 and 682,921.26 is: 942,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,895.12 : 1,469,553.57 = 682,921.26 : x
  2. Step 2: Convert to fraction form
    1,064,895.12/1,469,553.57 = 682,921.26/x
  3. Step 3: Cross multiply
    1,064,895.12x = 1,469,553.57 × 682,921.26
  4. Step 4: Simplify right side
    1,064,895.12x = 1,003,589,375,661.90
  5. Step 5: Solve for x
    x = 1,003,589,375,661.90/1,064,895.12
  6. Step 6: Final answer
    x = 942,430.25

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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.