Home / 457,187.38-685,845.33-190,887.28

Finding the Fourth Proportional to 457,187.38, 685,845.33 and 190,887.28

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Solution

The fourth proportional to 457,187.38, 685,845.33 and 190,887.28 is: 286,357.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,187.38 : 685,845.33 = 190,887.28 : x
  2. Step 2: Convert to fraction form
    457,187.38/685,845.33 = 190,887.28/x
  3. Step 3: Cross multiply
    457,187.38x = 685,845.33 × 190,887.28
  4. Step 4: Simplify right side
    457,187.38x = 130,919,149,544.40
  5. Step 5: Solve for x
    x = 130,919,149,544.40/457,187.38
  6. Step 6: Final answer
    x = 286,357.75

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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.