Home / 393,719.32-590,673.03-127,480.12

Finding the Fourth Proportional to 393,719.32, 590,673.03 and 127,480.12

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Solution

The fourth proportional to 393,719.32, 590,673.03 and 127,480.12 is: 191,250.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,719.32 : 590,673.03 = 127,480.12 : x
  2. Step 2: Convert to fraction form
    393,719.32/590,673.03 = 127,480.12/x
  3. Step 3: Cross multiply
    393,719.32x = 590,673.03 × 127,480.12
  4. Step 4: Simplify right side
    393,719.32x = 75,299,068,745.16
  5. Step 5: Solve for x
    x = 75,299,068,745.16/393,719.32
  6. Step 6: Final answer
    x = 191,250.63

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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.