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Finding the Fourth Proportional to 275,711.55, 412,692.53 and 275,711.55

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Solution

The fourth proportional to 275,711.55, 412,692.53 and 275,711.55 is: 412,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,711.55 : 412,692.53 = 275,711.55 : x
  2. Step 2: Convert to fraction form
    275,711.55/412,692.53 = 275,711.55/x
  3. Step 3: Cross multiply
    275,711.55x = 412,692.53 × 275,711.55
  4. Step 4: Simplify right side
    275,711.55x = 113,784,095,741.16
  5. Step 5: Solve for x
    x = 113,784,095,741.16/275,711.55
  6. Step 6: Final answer
    x = 412,692.53

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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.