Home / 381,290.24-526,180.74-211,524.50

Finding the Fourth Proportional to 381,290.24, 526,180.74 and 211,524.50

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Solution

The fourth proportional to 381,290.24, 526,180.74 and 211,524.50 is: 291,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,290.24 : 526,180.74 = 211,524.50 : x
  2. Step 2: Convert to fraction form
    381,290.24/526,180.74 = 211,524.50/x
  3. Step 3: Cross multiply
    381,290.24x = 526,180.74 × 211,524.50
  4. Step 4: Simplify right side
    381,290.24x = 111,300,117,938.13
  5. Step 5: Solve for x
    x = 111,300,117,938.13/381,290.24
  6. Step 6: Final answer
    x = 291,903.93

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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.