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Finding the Fourth Proportional to 552,609.28, 762,628.80 and 326,249.92

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Solution

The fourth proportional to 552,609.28, 762,628.80 and 326,249.92 is: 450,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,609.28 : 762,628.80 = 326,249.92 : x
  2. Step 2: Convert to fraction form
    552,609.28/762,628.80 = 326,249.92/x
  3. Step 3: Cross multiply
    552,609.28x = 762,628.80 × 326,249.92
  4. Step 4: Simplify right side
    552,609.28x = 248,807,584,989.70
  5. Step 5: Solve for x
    x = 248,807,584,989.70/552,609.28
  6. Step 6: Final answer
    x = 450,241.42

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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.