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Finding the Third Proportional to 857,688 and 1,257,884

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Solution

The third proportional to 857,688 and 1,257,884 is: 1,844,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,688 : 1,257,884 = 1,257,884 : x
  2. Step 2: Convert to fraction form
    857,688/1,257,884 = 1,257,884/x
  3. Step 3: Cross multiply
    857,688x = 1,257,884 × 1,257,884
  4. Step 4: Simplify right side
    857,688x = 1,582,272,157,456
  5. Step 5: Solve for x
    x = 1,582,272,157,456/857,688
  6. Step 6: Final answer
    x = 1,844,810.88

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.