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Finding the Fourth Proportional to 403,523.40, 605,025.90 and 166,960.20

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Solution

The fourth proportional to 403,523.40, 605,025.90 and 166,960.20 is: 250,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,523.40 : 605,025.90 = 166,960.20 : x
  2. Step 2: Convert to fraction form
    403,523.40/605,025.90 = 166,960.20/x
  3. Step 3: Cross multiply
    403,523.40x = 605,025.90 × 166,960.20
  4. Step 4: Simplify right side
    403,523.40x = 101,015,245,269.18
  5. Step 5: Solve for x
    x = 101,015,245,269.18/403,523.40
  6. Step 6: Final answer
    x = 250,333.05

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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.