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Finding the Fourth Proportional to 265,469.44, 398,192.52 and 85,550.84

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Solution

The fourth proportional to 265,469.44, 398,192.52 and 85,550.84 is: 128,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,469.44 : 398,192.52 = 85,550.84 : x
  2. Step 2: Convert to fraction form
    265,469.44/398,192.52 = 85,550.84/x
  3. Step 3: Cross multiply
    265,469.44x = 398,192.52 × 85,550.84
  4. Step 4: Simplify right side
    265,469.44x = 34,065,704,567.72
  5. Step 5: Solve for x
    x = 34,065,704,567.72/265,469.44
  6. Step 6: Final answer
    x = 128,322.51

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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.