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Finding the Fourth Proportional to 331,266.88, 495,967.20 and 297,674.56

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Solution

The fourth proportional to 331,266.88, 495,967.20 and 297,674.56 is: 445,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,266.88 : 495,967.20 = 297,674.56 : x
  2. Step 2: Convert to fraction form
    331,266.88/495,967.20 = 297,674.56/x
  3. Step 3: Cross multiply
    331,266.88x = 495,967.20 × 297,674.56
  4. Step 4: Simplify right side
    331,266.88x = 147,636,818,034.43
  5. Step 5: Solve for x
    x = 147,636,818,034.43/331,266.88
  6. Step 6: Final answer
    x = 445,673.34

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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.