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Finding the Fourth Proportional to 381,293.38, 526,185.50 and 211,527.52

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Solution

The fourth proportional to 381,293.38, 526,185.50 and 211,527.52 is: 291,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,293.38 : 526,185.50 = 211,527.52 : x
  2. Step 2: Convert to fraction form
    381,293.38/526,185.50 = 211,527.52/x
  3. Step 3: Cross multiply
    381,293.38x = 526,185.50 × 211,527.52
  4. Step 4: Simplify right side
    381,293.38x = 111,302,713,874.96
  5. Step 5: Solve for x
    x = 111,302,713,874.96/381,293.38
  6. Step 6: Final answer
    x = 291,908.33

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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.