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Finding the Third Proportional to 442,866 and 705,021

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Solution

The third proportional to 442,866 and 705,021 is: 1,122,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,866 : 705,021 = 705,021 : x
  2. Step 2: Convert to fraction form
    442,866/705,021 = 705,021/x
  3. Step 3: Cross multiply
    442,866x = 705,021 × 705,021
  4. Step 4: Simplify right side
    442,866x = 497,054,610,441
  5. Step 5: Solve for x
    x = 497,054,610,441/442,866
  6. Step 6: Final answer
    x = 1,122,358.93

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.