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Finding the Fourth Proportional to 269,477.20, 403,778.40 and 169,458.40

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Solution

The fourth proportional to 269,477.20, 403,778.40 and 169,458.40 is: 253,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,477.20 : 403,778.40 = 169,458.40 : x
  2. Step 2: Convert to fraction form
    269,477.20/403,778.40 = 169,458.40/x
  3. Step 3: Cross multiply
    269,477.20x = 403,778.40 × 169,458.40
  4. Step 4: Simplify right side
    269,477.20x = 68,423,641,618.56
  5. Step 5: Solve for x
    x = 68,423,641,618.56/269,477.20
  6. Step 6: Final answer
    x = 253,912.54

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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.