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Finding the Fourth Proportional to 290,968.80, 435,752.28 and 197,190.24

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Solution

The fourth proportional to 290,968.80, 435,752.28 and 197,190.24 is: 295,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,968.80 : 435,752.28 = 197,190.24 : x
  2. Step 2: Convert to fraction form
    290,968.80/435,752.28 = 197,190.24/x
  3. Step 3: Cross multiply
    290,968.80x = 435,752.28 × 197,190.24
  4. Step 4: Simplify right side
    290,968.80x = 85,926,096,673.75
  5. Step 5: Solve for x
    x = 85,926,096,673.75/290,968.80
  6. Step 6: Final answer
    x = 295,310.34

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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.