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Finding the Fourth Proportional to 382,406.80, 573,610.20 and 367,891.60

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Solution

The fourth proportional to 382,406.80, 573,610.20 and 367,891.60 is: 551,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,406.80 : 573,610.20 = 367,891.60 : x
  2. Step 2: Convert to fraction form
    382,406.80/573,610.20 = 367,891.60/x
  3. Step 3: Cross multiply
    382,406.80x = 573,610.20 × 367,891.60
  4. Step 4: Simplify right side
    382,406.80x = 211,026,374,254.32
  5. Step 5: Solve for x
    x = 211,026,374,254.32/382,406.80
  6. Step 6: Final answer
    x = 551,837.40

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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.