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Finding the Fourth Proportional to 382,404.80, 573,607.20 and 367,889.60

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Solution

The fourth proportional to 382,404.80, 573,607.20 and 367,889.60 is: 551,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,404.80 : 573,607.20 = 367,889.60 : x
  2. Step 2: Convert to fraction form
    382,404.80/573,607.20 = 367,889.60/x
  3. Step 3: Cross multiply
    382,404.80x = 573,607.20 × 367,889.60
  4. Step 4: Simplify right side
    382,404.80x = 211,024,123,365.12
  5. Step 5: Solve for x
    x = 211,024,123,365.12/382,404.80
  6. Step 6: Final answer
    x = 551,834.40

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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.