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Finding the Fourth Proportional to 403,313.60, 605,189.10 and 166,680.20

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Solution

The fourth proportional to 403,313.60, 605,189.10 and 166,680.20 is: 250,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,313.60 : 605,189.10 = 166,680.20 : x
  2. Step 2: Convert to fraction form
    403,313.60/605,189.10 = 166,680.20/x
  3. Step 3: Cross multiply
    403,313.60x = 605,189.10 × 166,680.20
  4. Step 4: Simplify right side
    403,313.60x = 100,873,040,225.82
  5. Step 5: Solve for x
    x = 100,873,040,225.82/403,313.60
  6. Step 6: Final answer
    x = 250,110.68

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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.