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Finding the Fourth Proportional to 633,563.84, 874,340.34 and 347,083.90

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Solution

The fourth proportional to 633,563.84, 874,340.34 and 347,083.90 is: 478,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,563.84 : 874,340.34 = 347,083.90 : x
  2. Step 2: Convert to fraction form
    633,563.84/874,340.34 = 347,083.90/x
  3. Step 3: Cross multiply
    633,563.84x = 874,340.34 × 347,083.90
  4. Step 4: Simplify right side
    633,563.84x = 303,469,455,134.53
  5. Step 5: Solve for x
    x = 303,469,455,134.53/633,563.84
  6. Step 6: Final answer
    x = 478,987.97

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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.