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Finding the Third Proportional to 786,282 and 1,178,189

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Solution

The third proportional to 786,282 and 1,178,189 is: 1,765,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,282 : 1,178,189 = 1,178,189 : x
  2. Step 2: Convert to fraction form
    786,282/1,178,189 = 1,178,189/x
  3. Step 3: Cross multiply
    786,282x = 1,178,189 × 1,178,189
  4. Step 4: Simplify right side
    786,282x = 1,388,129,319,721
  5. Step 5: Solve for x
    x = 1,388,129,319,721/786,282
  6. Step 6: Final answer
    x = 1,765,434.44

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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.