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Finding the Fourth Proportional to 268,164.20, 402,246.30 and 255,042.20

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Solution

The fourth proportional to 268,164.20, 402,246.30 and 255,042.20 is: 382,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,164.20 : 402,246.30 = 255,042.20 : x
  2. Step 2: Convert to fraction form
    268,164.20/402,246.30 = 255,042.20/x
  3. Step 3: Cross multiply
    268,164.20x = 402,246.30 × 255,042.20
  4. Step 4: Simplify right side
    268,164.20x = 102,589,781,293.86
  5. Step 5: Solve for x
    x = 102,589,781,293.86/268,164.20
  6. Step 6: Final answer
    x = 382,563.30

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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.