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Finding the Fourth Proportional to 318,633.41, 439,662.63 and 182,642.33

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Solution

The fourth proportional to 318,633.41, 439,662.63 and 182,642.33 is: 252,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,633.41 : 439,662.63 = 182,642.33 : x
  2. Step 2: Convert to fraction form
    318,633.41/439,662.63 = 182,642.33/x
  3. Step 3: Cross multiply
    318,633.41x = 439,662.63 × 182,642.33
  4. Step 4: Simplify right side
    318,633.41x = 80,301,004,958.81
  5. Step 5: Solve for x
    x = 80,301,004,958.81/318,633.41
  6. Step 6: Final answer
    x = 252,016.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.