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Finding the Third Proportional to 790,011 and 1,191,987

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Solution

The third proportional to 790,011 and 1,191,987 is: 1,798,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,011 : 1,191,987 = 1,191,987 : x
  2. Step 2: Convert to fraction form
    790,011/1,191,987 = 1,191,987/x
  3. Step 3: Cross multiply
    790,011x = 1,191,987 × 1,191,987
  4. Step 4: Simplify right side
    790,011x = 1,420,833,008,169
  5. Step 5: Solve for x
    x = 1,420,833,008,169/790,011
  6. Step 6: Final answer
    x = 1,798,497.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.