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Finding the Fourth Proportional to 297,245.66, 445,948.96 and 211,964.28

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Solution

The fourth proportional to 297,245.66, 445,948.96 and 211,964.28 is: 318,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,245.66 : 445,948.96 = 211,964.28 : x
  2. Step 2: Convert to fraction form
    297,245.66/445,948.96 = 211,964.28/x
  3. Step 3: Cross multiply
    297,245.66x = 445,948.96 × 211,964.28
  4. Step 4: Simplify right side
    297,245.66x = 94,525,250,223.15
  5. Step 5: Solve for x
    x = 94,525,250,223.15/297,245.66
  6. Step 6: Final answer
    x = 318,003.80

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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.