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Finding the Third Proportional to 917,620 and 1,975,844

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Solution

The third proportional to 917,620 and 1,975,844 is: 4,254,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,620 : 1,975,844 = 1,975,844 : x
  2. Step 2: Convert to fraction form
    917,620/1,975,844 = 1,975,844/x
  3. Step 3: Cross multiply
    917,620x = 1,975,844 × 1,975,844
  4. Step 4: Simplify right side
    917,620x = 3,903,959,512,336
  5. Step 5: Solve for x
    x = 3,903,959,512,336/917,620
  6. Step 6: Final answer
    x = 4,254,440.30

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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.