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Finding the Fourth Proportional to 330,396.63, 455,947.75 and 179,493.63

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Solution

The fourth proportional to 330,396.63, 455,947.75 and 179,493.63 is: 247,701.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,396.63 : 455,947.75 = 179,493.63 : x
  2. Step 2: Convert to fraction form
    330,396.63/455,947.75 = 179,493.63/x
  3. Step 3: Cross multiply
    330,396.63x = 455,947.75 × 179,493.63
  4. Step 4: Simplify right side
    330,396.63x = 81,839,716,737.83
  5. Step 5: Solve for x
    x = 81,839,716,737.83/330,396.63
  6. Step 6: Final answer
    x = 247,701.43

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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.