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Finding the Fourth Proportional to 351,409.98, 484,943.72 and 190,261.65

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Solution

The fourth proportional to 351,409.98, 484,943.72 and 190,261.65 is: 262,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,409.98 : 484,943.72 = 190,261.65 : x
  2. Step 2: Convert to fraction form
    351,409.98/484,943.72 = 190,261.65/x
  3. Step 3: Cross multiply
    351,409.98x = 484,943.72 × 190,261.65
  4. Step 4: Simplify right side
    351,409.98x = 92,266,192,324.34
  5. Step 5: Solve for x
    x = 92,266,192,324.34/351,409.98
  6. Step 6: Final answer
    x = 262,559.97

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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.