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Finding the Fourth Proportional to 352,431.34, 486,355.74 and 191,286.34

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Solution

The fourth proportional to 352,431.34, 486,355.74 and 191,286.34 is: 263,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,431.34 : 486,355.74 = 191,286.34 : x
  2. Step 2: Convert to fraction form
    352,431.34/486,355.74 = 191,286.34/x
  3. Step 3: Cross multiply
    352,431.34x = 486,355.74 × 191,286.34
  4. Step 4: Simplify right side
    352,431.34x = 93,033,209,442.59
  5. Step 5: Solve for x
    x = 93,033,209,442.59/352,431.34
  6. Step 6: Final answer
    x = 263,975.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.