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Finding the Fourth Proportional to 343,507.17, 474,047.49 and 190,540.38

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Solution

The fourth proportional to 343,507.17, 474,047.49 and 190,540.38 is: 262,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,507.17 : 474,047.49 = 190,540.38 : x
  2. Step 2: Convert to fraction form
    343,507.17/474,047.49 = 190,540.38/x
  3. Step 3: Cross multiply
    343,507.17x = 474,047.49 × 190,540.38
  4. Step 4: Simplify right side
    343,507.17x = 90,325,188,882.65
  5. Step 5: Solve for x
    x = 90,325,188,882.65/343,507.17
  6. Step 6: Final answer
    x = 262,949.94

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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.