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Finding the Fourth Proportional to 469,423.46, 647,804.74 and 254,563.48

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Solution

The fourth proportional to 469,423.46, 647,804.74 and 254,563.48 is: 351,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,423.46 : 647,804.74 = 254,563.48 : x
  2. Step 2: Convert to fraction form
    469,423.46/647,804.74 = 254,563.48/x
  3. Step 3: Cross multiply
    469,423.46x = 647,804.74 × 254,563.48
  4. Step 4: Simplify right side
    469,423.46x = 164,907,428,974.90
  5. Step 5: Solve for x
    x = 164,907,428,974.90/469,423.46
  6. Step 6: Final answer
    x = 351,297.80

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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.