Home / 381,279.24-526,165.56-211,513.50

Finding the Fourth Proportional to 381,279.24, 526,165.56 and 211,513.50

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Solution

The fourth proportional to 381,279.24, 526,165.56 and 211,513.50 is: 291,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,279.24 : 526,165.56 = 211,513.50 : x
  2. Step 2: Convert to fraction form
    381,279.24/526,165.56 = 211,513.50/x
  3. Step 3: Cross multiply
    381,279.24x = 526,165.56 × 211,513.50
  4. Step 4: Simplify right side
    381,279.24x = 111,291,119,175.06
  5. Step 5: Solve for x
    x = 111,291,119,175.06/381,279.24
  6. Step 6: Final answer
    x = 291,888.75

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1.5x scale

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.