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Finding the Fourth Proportional to 262,596.32, 393,811.84 and 85,062.16

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Solution

The fourth proportional to 262,596.32, 393,811.84 and 85,062.16 is: 127,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,596.32 : 393,811.84 = 85,062.16 : x
  2. Step 2: Convert to fraction form
    262,596.32/393,811.84 = 85,062.16/x
  3. Step 3: Cross multiply
    262,596.32x = 393,811.84 × 85,062.16
  4. Step 4: Simplify right side
    262,596.32x = 33,498,485,743.97
  5. Step 5: Solve for x
    x = 33,498,485,743.97/262,596.32
  6. Step 6: Final answer
    x = 127,566.47

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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.