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Finding the Fourth Proportional to 374,825.80, 562,497.90 and 269,720.20

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Solution

The fourth proportional to 374,825.80, 562,497.90 and 269,720.20 is: 404,766.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,825.80 : 562,497.90 = 269,720.20 : x
  2. Step 2: Convert to fraction form
    374,825.80/562,497.90 = 269,720.20/x
  3. Step 3: Cross multiply
    374,825.80x = 562,497.90 × 269,720.20
  4. Step 4: Simplify right side
    374,825.80x = 151,717,046,087.58
  5. Step 5: Solve for x
    x = 151,717,046,087.58/374,825.80
  6. Step 6: Final answer
    x = 404,766.82

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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.