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Finding the Third Proportional to 293,889 and 439,693

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Solution

The third proportional to 293,889 and 439,693 is: 657,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,889 : 439,693 = 439,693 : x
  2. Step 2: Convert to fraction form
    293,889/439,693 = 439,693/x
  3. Step 3: Cross multiply
    293,889x = 439,693 × 439,693
  4. Step 4: Simplify right side
    293,889x = 193,329,934,249
  5. Step 5: Solve for x
    x = 193,329,934,249/293,889
  6. Step 6: Final answer
    x = 657,833.18

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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.