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Finding the Fourth Proportional to 568,485.54, 784,504.98 and 313,831.26

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Solution

The fourth proportional to 568,485.54, 784,504.98 and 313,831.26 is: 433,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,485.54 : 784,504.98 = 313,831.26 : x
  2. Step 2: Convert to fraction form
    568,485.54/784,504.98 = 313,831.26/x
  3. Step 3: Cross multiply
    568,485.54x = 784,504.98 × 313,831.26
  4. Step 4: Simplify right side
    568,485.54x = 246,202,186,349.68
  5. Step 5: Solve for x
    x = 246,202,186,349.68/568,485.54
  6. Step 6: Final answer
    x = 433,084.34

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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.