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Finding the Fourth Proportional to 304,815.62, 455,369.49 and 197,323.88

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Solution

The fourth proportional to 304,815.62, 455,369.49 and 197,323.88 is: 294,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,815.62 : 455,369.49 = 197,323.88 : x
  2. Step 2: Convert to fraction form
    304,815.62/455,369.49 = 197,323.88/x
  3. Step 3: Cross multiply
    304,815.62x = 455,369.49 × 197,323.88
  4. Step 4: Simplify right side
    304,815.62x = 89,855,274,107.11
  5. Step 5: Solve for x
    x = 89,855,274,107.11/304,815.62
  6. Step 6: Final answer
    x = 294,785.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.