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Finding the Third Proportional to 415,534 and 910,166

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Solution

The third proportional to 415,534 and 910,166 is: 1,993,584.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,534 : 910,166 = 910,166 : x
  2. Step 2: Convert to fraction form
    415,534/910,166 = 910,166/x
  3. Step 3: Cross multiply
    415,534x = 910,166 × 910,166
  4. Step 4: Simplify right side
    415,534x = 828,402,147,556
  5. Step 5: Solve for x
    x = 828,402,147,556/415,534
  6. Step 6: Final answer
    x = 1,993,584.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.