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Finding the Third Proportional to 254,064 and 395,604

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Solution

The third proportional to 254,064 and 395,604 is: 615,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,064 : 395,604 = 395,604 : x
  2. Step 2: Convert to fraction form
    254,064/395,604 = 395,604/x
  3. Step 3: Cross multiply
    254,064x = 395,604 × 395,604
  4. Step 4: Simplify right side
    254,064x = 156,502,524,816
  5. Step 5: Solve for x
    x = 156,502,524,816/254,064
  6. Step 6: Final answer
    x = 615,996.46

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.