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Finding the Fourth Proportional to 479,183.40, 718,775.10 and 146,716.20

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Solution

The fourth proportional to 479,183.40, 718,775.10 and 146,716.20 is: 220,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,183.40 : 718,775.10 = 146,716.20 : x
  2. Step 2: Convert to fraction form
    479,183.40/718,775.10 = 146,716.20/x
  3. Step 3: Cross multiply
    479,183.40x = 718,775.10 × 146,716.20
  4. Step 4: Simplify right side
    479,183.40x = 105,455,951,326.62
  5. Step 5: Solve for x
    x = 105,455,951,326.62/479,183.40
  6. Step 6: Final answer
    x = 220,074.30

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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.