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Finding the Fourth Proportional to 382,421.30, 573,631.95 and 367,906.10

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Solution

The fourth proportional to 382,421.30, 573,631.95 and 367,906.10 is: 551,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,421.30 : 573,631.95 = 367,906.10 : x
  2. Step 2: Convert to fraction form
    382,421.30/573,631.95 = 367,906.10/x
  3. Step 3: Cross multiply
    382,421.30x = 573,631.95 × 367,906.10
  4. Step 4: Simplify right side
    382,421.30x = 211,042,693,559.90
  5. Step 5: Solve for x
    x = 211,042,693,559.90/382,421.30
  6. Step 6: Final answer
    x = 551,859.15

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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.