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Finding the Fourth Proportional to 436,831.76, 603,013.83 and 293,674.84

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Solution

The fourth proportional to 436,831.76, 603,013.83 and 293,674.84 is: 405,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,831.76 : 603,013.83 = 293,674.84 : x
  2. Step 2: Convert to fraction form
    436,831.76/603,013.83 = 293,674.84/x
  3. Step 3: Cross multiply
    436,831.76x = 603,013.83 × 293,674.84
  4. Step 4: Simplify right side
    436,831.76x = 177,089,987,027.97
  5. Step 5: Solve for x
    x = 177,089,987,027.97/436,831.76
  6. Step 6: Final answer
    x = 405,396.32

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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.