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Finding the Fourth Proportional to 474,482.20, 711,492.90 and 263,896.60

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Solution

The fourth proportional to 474,482.20, 711,492.90 and 263,896.60 is: 395,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,482.20 : 711,492.90 = 263,896.60 : x
  2. Step 2: Convert to fraction form
    474,482.20/711,492.90 = 263,896.60/x
  3. Step 3: Cross multiply
    474,482.20x = 711,492.90 × 263,896.60
  4. Step 4: Simplify right side
    474,482.20x = 187,760,557,234.14
  5. Step 5: Solve for x
    x = 187,760,557,234.14/474,482.20
  6. Step 6: Final answer
    x = 395,716.76

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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.