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Finding the Fourth Proportional to 330,011.42, 455,415.72 and 179,108.42

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Solution

The fourth proportional to 330,011.42, 455,415.72 and 179,108.42 is: 247,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,011.42 : 455,415.72 = 179,108.42 : x
  2. Step 2: Convert to fraction form
    330,011.42/455,415.72 = 179,108.42/x
  3. Step 3: Cross multiply
    330,011.42x = 455,415.72 × 179,108.42
  4. Step 4: Simplify right side
    330,011.42x = 81,568,790,052.36
  5. Step 5: Solve for x
    x = 81,568,790,052.36/330,011.42
  6. Step 6: Final answer
    x = 247,169.60

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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.