Home / 431,741.75-647,756.06-191,822.31

Finding the Fourth Proportional to 431,741.75, 647,756.06 and 191,822.31

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Solution

The fourth proportional to 431,741.75, 647,756.06 and 191,822.31 is: 287,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,741.75 : 647,756.06 = 191,822.31 : x
  2. Step 2: Convert to fraction form
    431,741.75/647,756.06 = 191,822.31/x
  3. Step 3: Cross multiply
    431,741.75x = 647,756.06 × 191,822.31
  4. Step 4: Simplify right side
    431,741.75x = 124,254,062,786.59
  5. Step 5: Solve for x
    x = 124,254,062,786.59/431,741.75
  6. Step 6: Final answer
    x = 287,797.19

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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.