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Finding the Third Proportional to 417,120 and 917,184

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Solution

The third proportional to 417,120 and 917,184 is: 2,016,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,120 : 917,184 = 917,184 : x
  2. Step 2: Convert to fraction form
    417,120/917,184 = 917,184/x
  3. Step 3: Cross multiply
    417,120x = 917,184 × 917,184
  4. Step 4: Simplify right side
    417,120x = 841,226,489,856
  5. Step 5: Solve for x
    x = 841,226,489,856/417,120
  6. Step 6: Final answer
    x = 2,016,749.35

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.