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Finding the Fourth Proportional to 263,964.80, 395,428.80 and 245,302.40

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Solution

The fourth proportional to 263,964.80, 395,428.80 and 245,302.40 is: 367,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,964.80 : 395,428.80 = 245,302.40 : x
  2. Step 2: Convert to fraction form
    263,964.80/395,428.80 = 245,302.40/x
  3. Step 3: Cross multiply
    263,964.80x = 395,428.80 × 245,302.40
  4. Step 4: Simplify right side
    263,964.80x = 96,999,633,669.12
  5. Step 5: Solve for x
    x = 96,999,633,669.12/263,964.80
  6. Step 6: Final answer
    x = 367,471.85

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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.