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Finding the Third Proportional to 326,205 and 459,372

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Solution

The third proportional to 326,205 and 459,372 is: 646,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,205 : 459,372 = 459,372 : x
  2. Step 2: Convert to fraction form
    326,205/459,372 = 459,372/x
  3. Step 3: Cross multiply
    326,205x = 459,372 × 459,372
  4. Step 4: Simplify right side
    326,205x = 211,022,634,384
  5. Step 5: Solve for x
    x = 211,022,634,384/326,205
  6. Step 6: Final answer
    x = 646,901.90

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.