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Finding the Fourth Proportional to 275,730.80, 413,596.20 and 98,243.60

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Solution

The fourth proportional to 275,730.80, 413,596.20 and 98,243.60 is: 147,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,730.80 : 413,596.20 = 98,243.60 : x
  2. Step 2: Convert to fraction form
    275,730.80/413,596.20 = 98,243.60/x
  3. Step 3: Cross multiply
    275,730.80x = 413,596.20 × 98,243.60
  4. Step 4: Simplify right side
    275,730.80x = 40,633,179,634.32
  5. Step 5: Solve for x
    x = 40,633,179,634.32/275,730.80
  6. Step 6: Final answer
    x = 147,365.40

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1.5x scale

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.