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Finding the Fourth Proportional to 403,410.80, 605,116.20 and 166,674.80

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Solution

The fourth proportional to 403,410.80, 605,116.20 and 166,674.80 is: 250,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,410.80 : 605,116.20 = 166,674.80 : x
  2. Step 2: Convert to fraction form
    403,410.80/605,116.20 = 166,674.80/x
  3. Step 3: Cross multiply
    403,410.80x = 605,116.20 × 166,674.80
  4. Step 4: Simplify right side
    403,410.80x = 100,857,621,611.76
  5. Step 5: Solve for x
    x = 100,857,621,611.76/403,410.80
  6. Step 6: Final answer
    x = 250,012.20

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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.