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Finding the Fourth Proportional to 613,118.43, 918,348.44 and 296,912.25

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Solution

The fourth proportional to 613,118.43, 918,348.44 and 296,912.25 is: 444,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,118.43 : 918,348.44 = 296,912.25 : x
  2. Step 2: Convert to fraction form
    613,118.43/918,348.44 = 296,912.25/x
  3. Step 3: Cross multiply
    613,118.43x = 918,348.44 × 296,912.25
  4. Step 4: Simplify right side
    613,118.43x = 272,668,900,119.83
  5. Step 5: Solve for x
    x = 272,668,900,119.83/613,118.43
  6. Step 6: Final answer
    x = 444,724.68

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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.