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Finding the Fourth Proportional to 479,453.21, 718,991.82 and 179,770.42

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Solution

The fourth proportional to 479,453.21, 718,991.82 and 179,770.42 is: 269,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,453.21 : 718,991.82 = 179,770.42 : x
  2. Step 2: Convert to fraction form
    479,453.21/718,991.82 = 179,770.42/x
  3. Step 3: Cross multiply
    479,453.21x = 718,991.82 × 179,770.42
  4. Step 4: Simplify right side
    479,453.21x = 129,253,461,457.96
  5. Step 5: Solve for x
    x = 129,253,461,457.96/479,453.21
  6. Step 6: Final answer
    x = 269,585.14

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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.