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Finding the Fourth Proportional to 297,059.40, 445,807.80 and 197,186.40

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Solution

The fourth proportional to 297,059.40, 445,807.80 and 197,186.40 is: 295,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,059.40 : 445,807.80 = 197,186.40 : x
  2. Step 2: Convert to fraction form
    297,059.40/445,807.80 = 197,186.40/x
  3. Step 3: Cross multiply
    297,059.40x = 445,807.80 × 197,186.40
  4. Step 4: Simplify right side
    297,059.40x = 87,907,235,173.92
  5. Step 5: Solve for x
    x = 87,907,235,173.92/297,059.40
  6. Step 6: Final answer
    x = 295,924.77

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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.