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Finding the Fourth Proportional to 346,940.64, 520,056.44 and 196,863.88

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Solution

The fourth proportional to 346,940.64, 520,056.44 and 196,863.88 is: 295,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,940.64 : 520,056.44 = 196,863.88 : x
  2. Step 2: Convert to fraction form
    346,940.64/520,056.44 = 196,863.88/x
  3. Step 3: Cross multiply
    346,940.64x = 520,056.44 × 196,863.88
  4. Step 4: Simplify right side
    346,940.64x = 102,380,328,597.39
  5. Step 5: Solve for x
    x = 102,380,328,597.39/346,940.64
  6. Step 6: Final answer
    x = 295,094.66

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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.