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Finding the Fourth Proportional to 351,692.82, 485,332.28 and 190,538.26

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Solution

The fourth proportional to 351,692.82, 485,332.28 and 190,538.26 is: 262,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,692.82 : 485,332.28 = 190,538.26 : x
  2. Step 2: Convert to fraction form
    351,692.82/485,332.28 = 190,538.26/x
  3. Step 3: Cross multiply
    351,692.82x = 485,332.28 × 190,538.26
  4. Step 4: Simplify right side
    351,692.82x = 92,474,368,153.03
  5. Step 5: Solve for x
    x = 92,474,368,153.03/351,692.82
  6. Step 6: Final answer
    x = 262,940.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.