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Finding the Third Proportional to 291,267 and 441,411

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Solution

The third proportional to 291,267 and 441,411 is: 668,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267 : 441,411 = 441,411 : x
  2. Step 2: Convert to fraction form
    291,267/441,411 = 441,411/x
  3. Step 3: Cross multiply
    291,267x = 441,411 × 441,411
  4. Step 4: Simplify right side
    291,267x = 194,843,670,921
  5. Step 5: Solve for x
    x = 194,843,670,921/291,267
  6. Step 6: Final answer
    x = 668,952.10

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.