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Finding the Fourth Proportional to 633,641.48, 874,425.26 and 347,172.44

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Solution

The fourth proportional to 633,641.48, 874,425.26 and 347,172.44 is: 479,097.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,641.48 : 874,425.26 = 347,172.44 : x
  2. Step 2: Convert to fraction form
    633,641.48/874,425.26 = 347,172.44/x
  3. Step 3: Cross multiply
    633,641.48x = 874,425.26 × 347,172.44
  4. Step 4: Simplify right side
    633,641.48x = 303,576,351,111.83
  5. Step 5: Solve for x
    x = 303,576,351,111.83/633,641.48
  6. Step 6: Final answer
    x = 479,097.98

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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.