Home / 381,619.56-526,676.94-218,291.16

Finding the Fourth Proportional to 381,619.56, 526,676.94 and 218,291.16

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Solution

The fourth proportional to 381,619.56, 526,676.94 and 218,291.16 is: 301,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,619.56 : 526,676.94 = 218,291.16 : x
  2. Step 2: Convert to fraction form
    381,619.56/526,676.94 = 218,291.16/x
  3. Step 3: Cross multiply
    381,619.56x = 526,676.94 × 218,291.16
  4. Step 4: Simplify right side
    381,619.56x = 114,968,920,177.85
  5. Step 5: Solve for x
    x = 114,968,920,177.85/381,619.56
  6. Step 6: Final answer
    x = 301,265.80

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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.