Home / 640,131.24-960,245.87-190,817.76

Finding the Fourth Proportional to 640,131.24, 960,245.87 and 190,817.76

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Solution

The fourth proportional to 640,131.24, 960,245.87 and 190,817.76 is: 286,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,131.24 : 960,245.87 = 190,817.76 : x
  2. Step 2: Convert to fraction form
    640,131.24/960,245.87 = 190,817.76/x
  3. Step 3: Cross multiply
    640,131.24x = 960,245.87 × 190,817.76
  4. Step 4: Simplify right side
    640,131.24x = 183,231,965,008.56
  5. Step 5: Solve for x
    x = 183,231,965,008.56/640,131.24
  6. Step 6: Final answer
    x = 286,241.25

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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.