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Finding the Fourth Proportional to 663,046.53, 994,863.83 and 347,428.41

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Solution

The fourth proportional to 663,046.53, 994,863.83 and 347,428.41 is: 521,296.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,046.53 : 994,863.83 = 347,428.41 : x
  2. Step 2: Convert to fraction form
    663,046.53/994,863.83 = 347,428.41/x
  3. Step 3: Cross multiply
    663,046.53x = 994,863.83 × 347,428.41
  4. Step 4: Simplify right side
    663,046.53x = 345,643,956,886.27
  5. Step 5: Solve for x
    x = 345,643,956,886.27/663,046.53
  6. Step 6: Final answer
    x = 521,296.68

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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.