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Finding the Fourth Proportional to 193,480.40, 290,220.60 and 185,704.40

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Solution

The fourth proportional to 193,480.40, 290,220.60 and 185,704.40 is: 278,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,480.40 : 290,220.60 = 185,704.40 : x
  2. Step 2: Convert to fraction form
    193,480.40/290,220.60 = 185,704.40/x
  3. Step 3: Cross multiply
    193,480.40x = 290,220.60 × 185,704.40
  4. Step 4: Simplify right side
    193,480.40x = 53,895,242,390.64
  5. Step 5: Solve for x
    x = 53,895,242,390.64/193,480.40
  6. Step 6: Final answer
    x = 278,556.60

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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.