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Finding the Third Proportional to 392,607 and 847,887.75

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Solution

The third proportional to 392,607 and 847,887.75 is: 1,831,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,607 : 847,887.75 = 847,887.75 : x
  2. Step 2: Convert to fraction form
    392,607/847,887.75 = 847,887.75/x
  3. Step 3: Cross multiply
    392,607x = 847,887.75 × 847,887.75
  4. Step 4: Simplify right side
    392,607x = 718,913,636,600.06
  5. Step 5: Solve for x
    x = 718,913,636,600.06/392,607
  6. Step 6: Final answer
    x = 1,831,127.91

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.