Home / 381,546.43-526,536.11-238,389.50

Finding the Fourth Proportional to 381,546.43, 526,536.11 and 238,389.50

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Solution

The fourth proportional to 381,546.43, 526,536.11 and 238,389.50 is: 328,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,546.43 : 526,536.11 = 238,389.50 : x
  2. Step 2: Convert to fraction form
    381,546.43/526,536.11 = 238,389.50/x
  3. Step 3: Cross multiply
    381,546.43x = 526,536.11 × 238,389.50
  4. Step 4: Simplify right side
    381,546.43x = 125,520,681,907.16
  5. Step 5: Solve for x
    x = 125,520,681,907.16/381,546.43
  6. Step 6: Final answer
    x = 328,978.79

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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.