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Finding the Fourth Proportional to 231,628.80, 347,443.20 and 227,692.20

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Solution

The fourth proportional to 231,628.80, 347,443.20 and 227,692.20 is: 341,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,628.80 : 347,443.20 = 227,692.20 : x
  2. Step 2: Convert to fraction form
    231,628.80/347,443.20 = 227,692.20/x
  3. Step 3: Cross multiply
    231,628.80x = 347,443.20 × 227,692.20
  4. Step 4: Simplify right side
    231,628.80x = 79,110,106,583.04
  5. Step 5: Solve for x
    x = 79,110,106,583.04/231,628.80
  6. Step 6: Final answer
    x = 341,538.30

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1.5x scale

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.