Home / 431,254.39-647,181.74-178,536.19

Finding the Fourth Proportional to 431,254.39, 647,181.74 and 178,536.19

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Solution

The fourth proportional to 431,254.39, 647,181.74 and 178,536.19 is: 267,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,254.39 : 647,181.74 = 178,536.19 : x
  2. Step 2: Convert to fraction form
    431,254.39/647,181.74 = 178,536.19/x
  3. Step 3: Cross multiply
    431,254.39x = 647,181.74 × 178,536.19
  4. Step 4: Simplify right side
    431,254.39x = 115,545,360,032.88
  5. Step 5: Solve for x
    x = 115,545,360,032.88/431,254.39
  6. Step 6: Final answer
    x = 267,928.54

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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.