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Finding the Fourth Proportional to 613,181.88, 919,884.06 and 253,353.42

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Solution

The fourth proportional to 613,181.88, 919,884.06 and 253,353.42 is: 380,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,181.88 : 919,884.06 = 253,353.42 : x
  2. Step 2: Convert to fraction form
    613,181.88/919,884.06 = 253,353.42/x
  3. Step 3: Cross multiply
    613,181.88x = 919,884.06 × 253,353.42
  4. Step 4: Simplify right side
    613,181.88x = 233,055,772,604.49
  5. Step 5: Solve for x
    x = 233,055,772,604.49/613,181.88
  6. Step 6: Final answer
    x = 380,076.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.