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Finding the Fourth Proportional to 351,775.71, 485,452.17 and 190,630.53

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Solution

The fourth proportional to 351,775.71, 485,452.17 and 190,630.53 is: 263,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,775.71 : 485,452.17 = 190,630.53 : x
  2. Step 2: Convert to fraction form
    351,775.71/485,452.17 = 190,630.53/x
  3. Step 3: Cross multiply
    351,775.71x = 485,452.17 × 190,630.53
  4. Step 4: Simplify right side
    351,775.71x = 92,542,004,456.75
  5. Step 5: Solve for x
    x = 92,542,004,456.75/351,775.71
  6. Step 6: Final answer
    x = 263,071.05

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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.