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Finding the Fourth Proportional to 343,506.17, 474,046.11 and 190,539.38

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Solution

The fourth proportional to 343,506.17, 474,046.11 and 190,539.38 is: 262,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,506.17 : 474,046.11 = 190,539.38 : x
  2. Step 2: Convert to fraction form
    343,506.17/474,046.11 = 190,539.38/x
  3. Step 3: Cross multiply
    343,506.17x = 474,046.11 × 190,539.38
  4. Step 4: Simplify right side
    343,506.17x = 90,324,449,474.84
  5. Step 5: Solve for x
    x = 90,324,449,474.84/343,506.17
  6. Step 6: Final answer
    x = 262,948.55

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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.