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Finding the Fourth Proportional to 361,042.80, 498,257.48 and 199,915.64

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Solution

The fourth proportional to 361,042.80, 498,257.48 and 199,915.64 is: 275,893.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,042.80 : 498,257.48 = 199,915.64 : x
  2. Step 2: Convert to fraction form
    361,042.80/498,257.48 = 199,915.64/x
  3. Step 3: Cross multiply
    361,042.80x = 498,257.48 × 199,915.64
  4. Step 4: Simplify right side
    361,042.80x = 99,609,462,998.99
  5. Step 5: Solve for x
    x = 99,609,462,998.99/361,042.80
  6. Step 6: Final answer
    x = 275,893.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.