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Finding the Fourth Proportional to 263,304.66, 395,812.35 and 211,283.22

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Solution

The fourth proportional to 263,304.66, 395,812.35 and 211,283.22 is: 317,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,304.66 : 395,812.35 = 211,283.22 : x
  2. Step 2: Convert to fraction form
    263,304.66/395,812.35 = 211,283.22/x
  3. Step 3: Cross multiply
    263,304.66x = 395,812.35 × 211,283.22
  4. Step 4: Simplify right side
    263,304.66x = 83,628,507,823.77
  5. Step 5: Solve for x
    x = 83,628,507,823.77/263,304.66
  6. Step 6: Final answer
    x = 317,611.20

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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.