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Finding the Fourth Proportional to 500,658.90, 751,481.73 and 356,724.60

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Solution

The fourth proportional to 500,658.90, 751,481.73 and 356,724.60 is: 535,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,658.90 : 751,481.73 = 356,724.60 : x
  2. Step 2: Convert to fraction form
    500,658.90/751,481.73 = 356,724.60/x
  3. Step 3: Cross multiply
    500,658.90x = 751,481.73 × 356,724.60
  4. Step 4: Simplify right side
    500,658.90x = 268,072,019,541.56
  5. Step 5: Solve for x
    x = 268,072,019,541.56/500,658.90
  6. Step 6: Final answer
    x = 535,438.44

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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.