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Finding the Fourth Proportional to 263,408.20, 395,113.32 and 63,728.26

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Solution

The fourth proportional to 263,408.20, 395,113.32 and 63,728.26 is: 95,592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,408.20 : 395,113.32 = 63,728.26 : x
  2. Step 2: Convert to fraction form
    263,408.20/395,113.32 = 63,728.26/x
  3. Step 3: Cross multiply
    263,408.20x = 395,113.32 × 63,728.26
  4. Step 4: Simplify right side
    263,408.20x = 25,179,884,386.42
  5. Step 5: Solve for x
    x = 25,179,884,386.42/263,408.20
  6. Step 6: Final answer
    x = 95,592.64

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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.