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Finding the Third Proportional to 818,712 and 1,761,840

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Solution

The third proportional to 818,712 and 1,761,840 is: 3,791,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,712 : 1,761,840 = 1,761,840 : x
  2. Step 2: Convert to fraction form
    818,712/1,761,840 = 1,761,840/x
  3. Step 3: Cross multiply
    818,712x = 1,761,840 × 1,761,840
  4. Step 4: Simplify right side
    818,712x = 3,104,080,185,600
  5. Step 5: Solve for x
    x = 3,104,080,185,600/818,712
  6. Step 6: Final answer
    x = 3,791,418.94

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.