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Finding the Fourth Proportional to 629,599.80, 944,313.30 and 208,831.80

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Solution

The fourth proportional to 629,599.80, 944,313.30 and 208,831.80 is: 313,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,599.80 : 944,313.30 = 208,831.80 : x
  2. Step 2: Convert to fraction form
    629,599.80/944,313.30 = 208,831.80/x
  3. Step 3: Cross multiply
    629,599.80x = 944,313.30 × 208,831.80
  4. Step 4: Simplify right side
    629,599.80x = 197,202,646,202.94
  5. Step 5: Solve for x
    x = 197,202,646,202.94/629,599.80
  6. Step 6: Final answer
    x = 313,219.04

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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.