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Finding the Fourth Proportional to 264,990.80, 396,567.65 and 253,968.32

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Solution

The fourth proportional to 264,990.80, 396,567.65 and 253,968.32 is: 380,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,990.80 : 396,567.65 = 253,968.32 : x
  2. Step 2: Convert to fraction form
    264,990.80/396,567.65 = 253,968.32/x
  3. Step 3: Cross multiply
    264,990.80x = 396,567.65 × 253,968.32
  4. Step 4: Simplify right side
    264,990.80x = 100,715,616,584.17
  5. Step 5: Solve for x
    x = 100,715,616,584.17/264,990.80
  6. Step 6: Final answer
    x = 380,072.13

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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.