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Finding the Fourth Proportional to 262,945.60, 394,418.40 and 168,467.20

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Solution

The fourth proportional to 262,945.60, 394,418.40 and 168,467.20 is: 252,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,945.60 : 394,418.40 = 168,467.20 : x
  2. Step 2: Convert to fraction form
    262,945.60/394,418.40 = 168,467.20/x
  3. Step 3: Cross multiply
    262,945.60x = 394,418.40 × 168,467.20
  4. Step 4: Simplify right side
    262,945.60x = 66,446,563,476.48
  5. Step 5: Solve for x
    x = 66,446,563,476.48/262,945.60
  6. Step 6: Final answer
    x = 252,700.80

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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.