Home / 457,245.19-685,867.87-190,860.39

Finding the Fourth Proportional to 457,245.19, 685,867.87 and 190,860.39

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Solution

The fourth proportional to 457,245.19, 685,867.87 and 190,860.39 is: 286,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,245.19 : 685,867.87 = 190,860.39 : x
  2. Step 2: Convert to fraction form
    457,245.19/685,867.87 = 190,860.39/x
  3. Step 3: Cross multiply
    457,245.19x = 685,867.87 × 190,860.39
  4. Step 4: Simplify right side
    457,245.19x = 130,905,009,917.04
  5. Step 5: Solve for x
    x = 130,905,009,917.04/457,245.19
  6. Step 6: Final answer
    x = 286,290.62

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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.