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Finding the Fourth Proportional to 542,983.20, 814,244.40 and 262,586.40

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Solution

The fourth proportional to 542,983.20, 814,244.40 and 262,586.40 is: 393,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,983.20 : 814,244.40 = 262,586.40 : x
  2. Step 2: Convert to fraction form
    542,983.20/814,244.40 = 262,586.40/x
  3. Step 3: Cross multiply
    542,983.20x = 814,244.40 × 262,586.40
  4. Step 4: Simplify right side
    542,983.20x = 213,809,505,716.16
  5. Step 5: Solve for x
    x = 213,809,505,716.16/542,983.20
  6. Step 6: Final answer
    x = 393,768.18

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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.