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Finding the Fourth Proportional to 245,422.37, 338,601.40 and 200,022.28

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Solution

The fourth proportional to 245,422.37, 338,601.40 and 200,022.28 is: 275,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,422.37 : 338,601.40 = 200,022.28 : x
  2. Step 2: Convert to fraction form
    245,422.37/338,601.40 = 200,022.28/x
  3. Step 3: Cross multiply
    245,422.37x = 338,601.40 × 200,022.28
  4. Step 4: Simplify right side
    245,422.37x = 67,727,822,692.63
  5. Step 5: Solve for x
    x = 67,727,822,692.63/245,422.37
  6. Step 6: Final answer
    x = 275,964.34

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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.