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Finding the Fourth Proportional to 667,527.12, 994,868.46 and 656,898.48

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Solution

The fourth proportional to 667,527.12, 994,868.46 and 656,898.48 is: 979,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,527.12 : 994,868.46 = 656,898.48 : x
  2. Step 2: Convert to fraction form
    667,527.12/994,868.46 = 656,898.48/x
  3. Step 3: Cross multiply
    667,527.12x = 994,868.46 × 656,898.48
  4. Step 4: Simplify right side
    667,527.12x = 653,527,579,173.94
  5. Step 5: Solve for x
    x = 653,527,579,173.94/667,527.12
  6. Step 6: Final answer
    x = 979,027.76

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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.