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Finding the Fourth Proportional to 393,022.30, 588,172.65 and 235,363.90

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Solution

The fourth proportional to 393,022.30, 588,172.65 and 235,363.90 is: 352,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,022.30 : 588,172.65 = 235,363.90 : x
  2. Step 2: Convert to fraction form
    393,022.30/588,172.65 = 235,363.90/x
  3. Step 3: Cross multiply
    393,022.30x = 588,172.65 × 235,363.90
  4. Step 4: Simplify right side
    393,022.30x = 138,434,608,777.34
  5. Step 5: Solve for x
    x = 138,434,608,777.34/393,022.30
  6. Step 6: Final answer
    x = 352,230.93

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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.