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Finding the Fourth Proportional to 329,052.60, 492,840.79 and 270,003.60

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Solution

The fourth proportional to 329,052.60, 492,840.79 and 270,003.60 is: 404,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,052.60 : 492,840.79 = 270,003.60 : x
  2. Step 2: Convert to fraction form
    329,052.60/492,840.79 = 270,003.60/x
  3. Step 3: Cross multiply
    329,052.60x = 492,840.79 × 270,003.60
  4. Step 4: Simplify right side
    329,052.60x = 133,068,786,851.84
  5. Step 5: Solve for x
    x = 133,068,786,851.84/329,052.60
  6. Step 6: Final answer
    x = 404,399.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.