Home / 685,309.02-1,027,839.69-186,556.38

Finding the Fourth Proportional to 685,309.02, 1,027,839.69 and 186,556.38

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Solution

The fourth proportional to 685,309.02, 1,027,839.69 and 186,556.38 is: 279,800.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,309.02 : 1,027,839.69 = 186,556.38 : x
  2. Step 2: Convert to fraction form
    685,309.02/1,027,839.69 = 186,556.38/x
  3. Step 3: Cross multiply
    685,309.02x = 1,027,839.69 × 186,556.38
  4. Step 4: Simplify right side
    685,309.02x = 191,750,051,786.72
  5. Step 5: Solve for x
    x = 191,750,051,786.72/685,309.02
  6. Step 6: Final answer
    x = 279,800.86

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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.