Home / 1,285,318.33-1,928,457.26-685,946.37

Finding the Fourth Proportional to 1,285,318.33, 1,928,457.26 and 685,946.37

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Solution

The fourth proportional to 1,285,318.33, 1,928,457.26 and 685,946.37 is: 1,029,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,318.33 : 1,928,457.26 = 685,946.37 : x
  2. Step 2: Convert to fraction form
    1,285,318.33/1,928,457.26 = 685,946.37/x
  3. Step 3: Cross multiply
    1,285,318.33x = 1,928,457.26 × 685,946.37
  4. Step 4: Simplify right side
    1,285,318.33x = 1,322,818,267,429.88
  5. Step 5: Solve for x
    x = 1,322,818,267,429.88/1,285,318.33
  6. Step 6: Final answer
    x = 1,029,175.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.