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Finding the Third Proportional to 753,912 and 1,638,792

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Solution

The third proportional to 753,912 and 1,638,792 is: 3,562,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,912 : 1,638,792 = 1,638,792 : x
  2. Step 2: Convert to fraction form
    753,912/1,638,792 = 1,638,792/x
  3. Step 3: Cross multiply
    753,912x = 1,638,792 × 1,638,792
  4. Step 4: Simplify right side
    753,912x = 2,685,639,219,264
  5. Step 5: Solve for x
    x = 2,685,639,219,264/753,912
  6. Step 6: Final answer
    x = 3,562,271.48

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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.