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Finding the Fourth Proportional to 663,046.16, 994,863.26 and 347,428.04

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Solution

The fourth proportional to 663,046.16, 994,863.26 and 347,428.04 is: 521,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,046.16 : 994,863.26 = 347,428.04 : x
  2. Step 2: Convert to fraction form
    663,046.16/994,863.26 = 347,428.04/x
  3. Step 3: Cross multiply
    663,046.16x = 994,863.26 × 347,428.04
  4. Step 4: Simplify right side
    663,046.16x = 345,643,388,384.06
  5. Step 5: Solve for x
    x = 345,643,388,384.06/663,046.16
  6. Step 6: Final answer
    x = 521,296.12

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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.