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Finding the Fourth Proportional to 1,042,437, 1,563,658.74 and 254,469

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Solution

The fourth proportional to 1,042,437, 1,563,658.74 and 254,469 is: 381,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,437 : 1,563,658.74 = 254,469 : x
  2. Step 2: Convert to fraction form
    1,042,437/1,563,658.74 = 254,469/x
  3. Step 3: Cross multiply
    1,042,437x = 1,563,658.74 × 254,469
  4. Step 4: Simplify right side
    1,042,437x = 397,902,675,909.06
  5. Step 5: Solve for x
    x = 397,902,675,909.06/1,042,437
  6. Step 6: Final answer
    x = 381,704.29

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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.