Home / 685,720.53-1,028,648.42-236,382.26

Finding the Fourth Proportional to 685,720.53, 1,028,648.42 and 236,382.26

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Solution

The fourth proportional to 685,720.53, 1,028,648.42 and 236,382.26 is: 354,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,720.53 : 1,028,648.42 = 236,382.26 : x
  2. Step 2: Convert to fraction form
    685,720.53/1,028,648.42 = 236,382.26/x
  3. Step 3: Cross multiply
    685,720.53x = 1,028,648.42 × 236,382.26
  4. Step 4: Simplify right side
    685,720.53x = 243,154,231,939.88
  5. Step 5: Solve for x
    x = 243,154,231,939.88/685,720.53
  6. Step 6: Final answer
    x = 354,596.69

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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.