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Finding the Third Proportional to 479,712 and 1,043,987

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Solution

The third proportional to 479,712 and 1,043,987 is: 2,272,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,712 : 1,043,987 = 1,043,987 : x
  2. Step 2: Convert to fraction form
    479,712/1,043,987 = 1,043,987/x
  3. Step 3: Cross multiply
    479,712x = 1,043,987 × 1,043,987
  4. Step 4: Simplify right side
    479,712x = 1,089,908,856,169
  5. Step 5: Solve for x
    x = 1,089,908,856,169/479,712
  6. Step 6: Final answer
    x = 2,272,006.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.