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Finding the Fourth Proportional to 321,894.80, 482,650.20 and 197,325.20

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Solution

The fourth proportional to 321,894.80, 482,650.20 and 197,325.20 is: 295,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,894.80 : 482,650.20 = 197,325.20 : x
  2. Step 2: Convert to fraction form
    321,894.80/482,650.20 = 197,325.20/x
  3. Step 3: Cross multiply
    321,894.80x = 482,650.20 × 197,325.20
  4. Step 4: Simplify right side
    321,894.80x = 95,239,047,245.04
  5. Step 5: Solve for x
    x = 95,239,047,245.04/321,894.80
  6. Step 6: Final answer
    x = 295,870.10

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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.