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Finding the Fourth Proportional to 633,986.97, 874,898.06 and 347,519.13

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Solution

The fourth proportional to 633,986.97, 874,898.06 and 347,519.13 is: 479,574.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,986.97 : 874,898.06 = 347,519.13 : x
  2. Step 2: Convert to fraction form
    633,986.97/874,898.06 = 347,519.13/x
  3. Step 3: Cross multiply
    633,986.97x = 874,898.06 × 347,519.13
  4. Step 4: Simplify right side
    633,986.97x = 304,043,810,912.29
  5. Step 5: Solve for x
    x = 304,043,810,912.29/633,986.97
  6. Step 6: Final answer
    x = 479,574.23

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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.