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Finding the Third Proportional to 326,932 and 490,724

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Solution

The third proportional to 326,932 and 490,724 is: 736,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,932 : 490,724 = 490,724 : x
  2. Step 2: Convert to fraction form
    326,932/490,724 = 490,724/x
  3. Step 3: Cross multiply
    326,932x = 490,724 × 490,724
  4. Step 4: Simplify right side
    326,932x = 240,810,044,176
  5. Step 5: Solve for x
    x = 240,810,044,176/326,932
  6. Step 6: Final answer
    x = 736,575.33

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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.