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Finding the Third Proportional to 818,320 and 1,778,276

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Solution

The third proportional to 818,320 and 1,778,276 is: 3,864,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,320 : 1,778,276 = 1,778,276 : x
  2. Step 2: Convert to fraction form
    818,320/1,778,276 = 1,778,276/x
  3. Step 3: Cross multiply
    818,320x = 1,778,276 × 1,778,276
  4. Step 4: Simplify right side
    818,320x = 3,162,265,532,176
  5. Step 5: Solve for x
    x = 3,162,265,532,176/818,320
  6. Step 6: Final answer
    x = 3,864,338.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.