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Finding the Fourth Proportional to 442,951.80, 664,427.70 and 369,468.60

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Solution

The fourth proportional to 442,951.80, 664,427.70 and 369,468.60 is: 554,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,951.80 : 664,427.70 = 369,468.60 : x
  2. Step 2: Convert to fraction form
    442,951.80/664,427.70 = 369,468.60/x
  3. Step 3: Cross multiply
    442,951.80x = 664,427.70 × 369,468.60
  4. Step 4: Simplify right side
    442,951.80x = 245,485,172,120.22
  5. Step 5: Solve for x
    x = 245,485,172,120.22/442,951.80
  6. Step 6: Final answer
    x = 554,202.90

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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.