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Finding the Fourth Proportional to 331,346.88, 457,274.88 and 188,104.32

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Solution

The fourth proportional to 331,346.88, 457,274.88 and 188,104.32 is: 259,593.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,346.88 : 457,274.88 = 188,104.32 : x
  2. Step 2: Convert to fraction form
    331,346.88/457,274.88 = 188,104.32/x
  3. Step 3: Cross multiply
    331,346.88x = 457,274.88 × 188,104.32
  4. Step 4: Simplify right side
    331,346.88x = 86,015,380,355.48
  5. Step 5: Solve for x
    x = 86,015,380,355.48/331,346.88
  6. Step 6: Final answer
    x = 259,593.15

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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.