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Finding the Fourth Proportional to 605,380.68, 907,648.20 and 268,238.25

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Solution

The fourth proportional to 605,380.68, 907,648.20 and 268,238.25 is: 402,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,380.68 : 907,648.20 = 268,238.25 : x
  2. Step 2: Convert to fraction form
    605,380.68/907,648.20 = 268,238.25/x
  3. Step 3: Cross multiply
    605,380.68x = 907,648.20 × 268,238.25
  4. Step 4: Simplify right side
    605,380.68x = 243,465,964,783.65
  5. Step 5: Solve for x
    x = 243,465,964,783.65/605,380.68
  6. Step 6: Final answer
    x = 402,170.03

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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.