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Finding the Fourth Proportional to 528,203.60, 792,132.60 and 195,736.40

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Solution

The fourth proportional to 528,203.60, 792,132.60 and 195,736.40 is: 293,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,203.60 : 792,132.60 = 195,736.40 : x
  2. Step 2: Convert to fraction form
    528,203.60/792,132.60 = 195,736.40/x
  3. Step 3: Cross multiply
    528,203.60x = 792,132.60 × 195,736.40
  4. Step 4: Simplify right side
    528,203.60x = 155,049,183,446.64
  5. Step 5: Solve for x
    x = 155,049,183,446.64/528,203.60
  6. Step 6: Final answer
    x = 293,540.57

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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.