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Finding the Fourth Proportional to 367,907.85, 550,549.58 and 255,058.65

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Solution

The fourth proportional to 367,907.85, 550,549.58 and 255,058.65 is: 381,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,907.85 : 550,549.58 = 255,058.65 : x
  2. Step 2: Convert to fraction form
    367,907.85/550,549.58 = 255,058.65/x
  3. Step 3: Cross multiply
    367,907.85x = 550,549.58 × 255,058.65
  4. Step 4: Simplify right side
    367,907.85x = 140,422,431,357.57
  5. Step 5: Solve for x
    x = 140,422,431,357.57/367,907.85
  6. Step 6: Final answer
    x = 381,678.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.