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Finding the Fourth Proportional to 365,631.40, 548,447.10 and 351,634.60

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Solution

The fourth proportional to 365,631.40, 548,447.10 and 351,634.60 is: 527,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,631.40 : 548,447.10 = 351,634.60 : x
  2. Step 2: Convert to fraction form
    365,631.40/548,447.10 = 351,634.60/x
  3. Step 3: Cross multiply
    365,631.40x = 548,447.10 × 351,634.60
  4. Step 4: Simplify right side
    365,631.40x = 192,852,976,629.66
  5. Step 5: Solve for x
    x = 192,852,976,629.66/365,631.40
  6. Step 6: Final answer
    x = 527,451.90

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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.