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Finding the Fourth Proportional to 343,799.80, 474,419.97 and 190,825.96

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Solution

The fourth proportional to 343,799.80, 474,419.97 and 190,825.96 is: 263,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,799.80 : 474,419.97 = 190,825.96 : x
  2. Step 2: Convert to fraction form
    343,799.80/474,419.97 = 190,825.96/x
  3. Step 3: Cross multiply
    343,799.80x = 474,419.97 × 190,825.96
  4. Step 4: Simplify right side
    343,799.80x = 90,531,646,218.42
  5. Step 5: Solve for x
    x = 90,531,646,218.42/343,799.80
  6. Step 6: Final answer
    x = 263,326.64

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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.