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Finding the Third Proportional to 326,422 and 499,362

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Solution

The third proportional to 326,422 and 499,362 is: 763,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,422 : 499,362 = 499,362 : x
  2. Step 2: Convert to fraction form
    326,422/499,362 = 499,362/x
  3. Step 3: Cross multiply
    326,422x = 499,362 × 499,362
  4. Step 4: Simplify right side
    326,422x = 249,362,407,044
  5. Step 5: Solve for x
    x = 249,362,407,044/326,422
  6. Step 6: Final answer
    x = 763,926.47

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.