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Finding the Fourth Proportional to 381,343.04, 526,253.46 and 211,576.76

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Solution

The fourth proportional to 381,343.04, 526,253.46 and 211,576.76 is: 291,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,343.04 : 526,253.46 = 211,576.76 : x
  2. Step 2: Convert to fraction form
    381,343.04/526,253.46 = 211,576.76/x
  3. Step 3: Cross multiply
    381,343.04x = 526,253.46 × 211,576.76
  4. Step 4: Simplify right side
    381,343.04x = 111,343,002,005.59
  5. Step 5: Solve for x
    x = 111,343,002,005.59/381,343.04
  6. Step 6: Final answer
    x = 291,975.96

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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.