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Finding the Fourth Proportional to 269,535.20, 403,865.40 and 169,516.40

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Solution

The fourth proportional to 269,535.20, 403,865.40 and 169,516.40 is: 253,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,535.20 : 403,865.40 = 169,516.40 : x
  2. Step 2: Convert to fraction form
    269,535.20/403,865.40 = 169,516.40/x
  3. Step 3: Cross multiply
    269,535.20x = 403,865.40 × 169,516.40
  4. Step 4: Simplify right side
    269,535.20x = 68,461,808,692.56
  5. Step 5: Solve for x
    x = 68,461,808,692.56/269,535.20
  6. Step 6: Final answer
    x = 253,999.51

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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.