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Finding the Fourth Proportional to 535,643.98, 739,186.65 and 293,930.60

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Solution

The fourth proportional to 535,643.98, 739,186.65 and 293,930.60 is: 405,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,643.98 : 739,186.65 = 293,930.60 : x
  2. Step 2: Convert to fraction form
    535,643.98/739,186.65 = 293,930.60/x
  3. Step 3: Cross multiply
    535,643.98x = 739,186.65 × 293,930.60
  4. Step 4: Simplify right side
    535,643.98x = 217,269,571,850.56
  5. Step 5: Solve for x
    x = 217,269,571,850.56/535,643.98
  6. Step 6: Final answer
    x = 405,623.10

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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.