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Finding the Fourth Proportional to 464,631, 641,091.90 and 273,574.68

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Solution

The fourth proportional to 464,631, 641,091.90 and 273,574.68 is: 377,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,631 : 641,091.90 = 273,574.68 : x
  2. Step 2: Convert to fraction form
    464,631/641,091.90 = 273,574.68/x
  3. Step 3: Cross multiply
    464,631x = 641,091.90 × 273,574.68
  4. Step 4: Simplify right side
    464,631x = 175,386,511,393.09
  5. Step 5: Solve for x
    x = 175,386,511,393.09/464,631
  6. Step 6: Final answer
    x = 377,474.84

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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.