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Finding the Fourth Proportional to 352,054.60, 528,081.90 and 269,110.60

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Solution

The fourth proportional to 352,054.60, 528,081.90 and 269,110.60 is: 403,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,054.60 : 528,081.90 = 269,110.60 : x
  2. Step 2: Convert to fraction form
    352,054.60/528,081.90 = 269,110.60/x
  3. Step 3: Cross multiply
    352,054.60x = 528,081.90 × 269,110.60
  4. Step 4: Simplify right side
    352,054.60x = 142,112,436,958.14
  5. Step 5: Solve for x
    x = 142,112,436,958.14/352,054.60
  6. Step 6: Final answer
    x = 403,665.90

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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.