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Finding the Third Proportional to 917,778.50 and 1,968,417

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Solution

The third proportional to 917,778.50 and 1,968,417 is: 4,221,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,778.50 : 1,968,417 = 1,968,417 : x
  2. Step 2: Convert to fraction form
    917,778.50/1,968,417 = 1,968,417/x
  3. Step 3: Cross multiply
    917,778.50x = 1,968,417 × 1,968,417
  4. Step 4: Simplify right side
    917,778.50x = 3,874,665,485,889
  5. Step 5: Solve for x
    x = 3,874,665,485,889/917,778.50
  6. Step 6: Final answer
    x = 4,221,787.16

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.