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Finding the Fourth Proportional to 263,476.80, 395,215.20 and 245,851.20

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Solution

The fourth proportional to 263,476.80, 395,215.20 and 245,851.20 is: 368,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,476.80 : 395,215.20 = 245,851.20 : x
  2. Step 2: Convert to fraction form
    263,476.80/395,215.20 = 245,851.20/x
  3. Step 3: Cross multiply
    263,476.80x = 395,215.20 × 245,851.20
  4. Step 4: Simplify right side
    263,476.80x = 97,164,131,178.24
  5. Step 5: Solve for x
    x = 97,164,131,178.24/263,476.80
  6. Step 6: Final answer
    x = 368,776.80

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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.