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Finding the Fourth Proportional to 352,924.87, 528,079.05 and 210,847.43

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Solution

The fourth proportional to 352,924.87, 528,079.05 and 210,847.43 is: 315,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,924.87 : 528,079.05 = 210,847.43 : x
  2. Step 2: Convert to fraction form
    352,924.87/528,079.05 = 210,847.43/x
  3. Step 3: Cross multiply
    352,924.87x = 528,079.05 × 210,847.43
  4. Step 4: Simplify right side
    352,924.87x = 111,344,110,529.34
  5. Step 5: Solve for x
    x = 111,344,110,529.34/352,924.87
  6. Step 6: Final answer
    x = 315,489.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.