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Finding the Fourth Proportional to 262,690.80, 394,327.80 and 162,963.60

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Solution

The fourth proportional to 262,690.80, 394,327.80 and 162,963.60 is: 244,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,690.80 : 394,327.80 = 162,963.60 : x
  2. Step 2: Convert to fraction form
    262,690.80/394,327.80 = 162,963.60/x
  3. Step 3: Cross multiply
    262,690.80x = 394,327.80 × 162,963.60
  4. Step 4: Simplify right side
    262,690.80x = 64,261,077,868.08
  5. Step 5: Solve for x
    x = 64,261,077,868.08/262,690.80
  6. Step 6: Final answer
    x = 244,626.30

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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.