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Finding the Fourth Proportional to 330,994.88, 456,866.70 and 195,107.66

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Solution

The fourth proportional to 330,994.88, 456,866.70 and 195,107.66 is: 269,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,994.88 : 456,866.70 = 195,107.66 : x
  2. Step 2: Convert to fraction form
    330,994.88/456,866.70 = 195,107.66/x
  3. Step 3: Cross multiply
    330,994.88x = 456,866.70 × 195,107.66
  4. Step 4: Simplify right side
    330,994.88x = 89,138,192,768.92
  5. Step 5: Solve for x
    x = 89,138,192,768.92/330,994.88
  6. Step 6: Final answer
    x = 269,303.84

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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.