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Finding the Fourth Proportional to 330,411.44, 455,958.92 and 194,453.39

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Solution

The fourth proportional to 330,411.44, 455,958.92 and 194,453.39 is: 268,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,411.44 : 455,958.92 = 194,453.39 : x
  2. Step 2: Convert to fraction form
    330,411.44/455,958.92 = 194,453.39/x
  3. Step 3: Cross multiply
    330,411.44x = 455,958.92 × 194,453.39
  4. Step 4: Simplify right side
    330,411.44x = 88,662,756,722.47
  5. Step 5: Solve for x
    x = 88,662,756,722.47/330,411.44
  6. Step 6: Final answer
    x = 268,340.46

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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.