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Finding the Fourth Proportional to 263,189.80, 394,784.70 and 245,564.20

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Solution

The fourth proportional to 263,189.80, 394,784.70 and 245,564.20 is: 368,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,189.80 : 394,784.70 = 245,564.20 : x
  2. Step 2: Convert to fraction form
    263,189.80/394,784.70 = 245,564.20/x
  3. Step 3: Cross multiply
    263,189.80x = 394,784.70 × 245,564.20
  4. Step 4: Simplify right side
    263,189.80x = 96,944,989,027.74
  5. Step 5: Solve for x
    x = 96,944,989,027.74/263,189.80
  6. Step 6: Final answer
    x = 368,346.30

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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.