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Finding the Fourth Proportional to 376,611.50, 519,597.42 and 213,245.72

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Solution

The fourth proportional to 376,611.50, 519,597.42 and 213,245.72 is: 294,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,611.50 : 519,597.42 = 213,245.72 : x
  2. Step 2: Convert to fraction form
    376,611.50/519,597.42 = 213,245.72/x
  3. Step 3: Cross multiply
    376,611.50x = 519,597.42 × 213,245.72
  4. Step 4: Simplify right side
    376,611.50x = 110,801,925,938.04
  5. Step 5: Solve for x
    x = 110,801,925,938.04/376,611.50
  6. Step 6: Final answer
    x = 294,207.49

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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.