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Finding the Fourth Proportional to 351,846.49, 485,593.12 and 196,806.40

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Solution

The fourth proportional to 351,846.49, 485,593.12 and 196,806.40 is: 271,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,846.49 : 485,593.12 = 196,806.40 : x
  2. Step 2: Convert to fraction form
    351,846.49/485,593.12 = 196,806.40/x
  3. Step 3: Cross multiply
    351,846.49x = 485,593.12 × 196,806.40
  4. Step 4: Simplify right side
    351,846.49x = 95,567,833,090.00
  5. Step 5: Solve for x
    x = 95,567,833,090.00/351,846.49
  6. Step 6: Final answer
    x = 271,617.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.