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Finding the Fourth Proportional to 330,328.80, 455,853.12 and 179,425.44

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Solution

The fourth proportional to 330,328.80, 455,853.12 and 179,425.44 is: 247,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,328.80 : 455,853.12 = 179,425.44 : x
  2. Step 2: Convert to fraction form
    330,328.80/455,853.12 = 179,425.44/x
  3. Step 3: Cross multiply
    330,328.80x = 455,853.12 × 179,425.44
  4. Step 4: Simplify right side
    330,328.80x = 81,791,646,631.37
  5. Step 5: Solve for x
    x = 81,791,646,631.37/330,328.80
  6. Step 6: Final answer
    x = 247,606.77

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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.