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Finding the Fourth Proportional to 340,287.02, 469,755.53 and 197,019.39

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Solution

The fourth proportional to 340,287.02, 469,755.53 and 197,019.39 is: 271,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,287.02 : 469,755.53 = 197,019.39 : x
  2. Step 2: Convert to fraction form
    340,287.02/469,755.53 = 197,019.39/x
  3. Step 3: Cross multiply
    340,287.02x = 469,755.53 × 197,019.39
  4. Step 4: Simplify right side
    340,287.02x = 92,550,946,288.54
  5. Step 5: Solve for x
    x = 92,550,946,288.54/340,287.02
  6. Step 6: Final answer
    x = 271,979.06

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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.