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Finding the Fourth Proportional to 263,575.20, 395,362.80 and 193,591.20

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Solution

The fourth proportional to 263,575.20, 395,362.80 and 193,591.20 is: 290,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,575.20 : 395,362.80 = 193,591.20 : x
  2. Step 2: Convert to fraction form
    263,575.20/395,362.80 = 193,591.20/x
  3. Step 3: Cross multiply
    263,575.20x = 395,362.80 × 193,591.20
  4. Step 4: Simplify right side
    263,575.20x = 76,538,758,887.36
  5. Step 5: Solve for x
    x = 76,538,758,887.36/263,575.20
  6. Step 6: Final answer
    x = 290,386.80

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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.