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Finding the Fourth Proportional to 663,343.53, 915,446.46 and 373,046.41

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Solution

The fourth proportional to 663,343.53, 915,446.46 and 373,046.41 is: 514,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,343.53 : 915,446.46 = 373,046.41 : x
  2. Step 2: Convert to fraction form
    663,343.53/915,446.46 = 373,046.41/x
  3. Step 3: Cross multiply
    663,343.53x = 915,446.46 × 373,046.41
  4. Step 4: Simplify right side
    663,343.53x = 341,504,015,450.21
  5. Step 5: Solve for x
    x = 341,504,015,450.21/663,343.53
  6. Step 6: Final answer
    x = 514,822.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.