Home / 505,680.76-758,550.28-190,140.40

Finding the Fourth Proportional to 505,680.76, 758,550.28 and 190,140.40

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Solution

The fourth proportional to 505,680.76, 758,550.28 and 190,140.40 is: 285,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,680.76 : 758,550.28 = 190,140.40 : x
  2. Step 2: Convert to fraction form
    505,680.76/758,550.28 = 190,140.40/x
  3. Step 3: Cross multiply
    505,680.76x = 758,550.28 × 190,140.40
  4. Step 4: Simplify right side
    505,680.76x = 144,231,053,659.31
  5. Step 5: Solve for x
    x = 144,231,053,659.31/505,680.76
  6. Step 6: Final answer
    x = 285,221.56

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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.