Home / 263,477.21-395,278.68-85,984.55

Finding the Fourth Proportional to 263,477.21, 395,278.68 and 85,984.55

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Solution

The fourth proportional to 263,477.21, 395,278.68 and 85,984.55 is: 128,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,477.21 : 395,278.68 = 85,984.55 : x
  2. Step 2: Convert to fraction form
    263,477.21/395,278.68 = 85,984.55/x
  3. Step 3: Cross multiply
    263,477.21x = 395,278.68 × 85,984.55
  4. Step 4: Simplify right side
    263,477.21x = 33,987,859,424.39
  5. Step 5: Solve for x
    x = 33,987,859,424.39/263,477.21
  6. Step 6: Final answer
    x = 128,997.34

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1.5x scale

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.