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Finding the Fourth Proportional to 367,883.70, 507,633.94 and 212,861.62

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Solution

The fourth proportional to 367,883.70, 507,633.94 and 212,861.62 is: 293,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,883.70 : 507,633.94 = 212,861.62 : x
  2. Step 2: Convert to fraction form
    367,883.70/507,633.94 = 212,861.62/x
  3. Step 3: Cross multiply
    367,883.70x = 507,633.94 × 212,861.62
  4. Step 4: Simplify right side
    367,883.70x = 108,055,782,835.38
  5. Step 5: Solve for x
    x = 108,055,782,835.38/367,883.70
  6. Step 6: Final answer
    x = 293,722.67

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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.