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Finding the Fourth Proportional to 330,688.62, 456,347.79 and 179,786.70

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Solution

The fourth proportional to 330,688.62, 456,347.79 and 179,786.70 is: 248,104.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,688.62 : 456,347.79 = 179,786.70 : x
  2. Step 2: Convert to fraction form
    330,688.62/456,347.79 = 179,786.70/x
  3. Step 3: Cross multiply
    330,688.62x = 456,347.79 × 179,786.70
  4. Step 4: Simplify right side
    330,688.62x = 82,045,263,216.39
  5. Step 5: Solve for x
    x = 82,045,263,216.39/330,688.62
  6. Step 6: Final answer
    x = 248,104.28

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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.