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Finding the Fourth Proportional to 295,448.40, 442,654.20 and 242,571.60

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Solution

The fourth proportional to 295,448.40, 442,654.20 and 242,571.60 is: 363,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,448.40 : 442,654.20 = 242,571.60 : x
  2. Step 2: Convert to fraction form
    295,448.40/442,654.20 = 242,571.60/x
  3. Step 3: Cross multiply
    295,448.40x = 442,654.20 × 242,571.60
  4. Step 4: Simplify right side
    295,448.40x = 107,375,337,540.72
  5. Step 5: Solve for x
    x = 107,375,337,540.72/295,448.40
  6. Step 6: Final answer
    x = 363,431.78

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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.