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Finding the Fourth Proportional to 404,511.80, 606,986.40 and 179,906.90

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Solution

The fourth proportional to 404,511.80, 606,986.40 and 179,906.90 is: 269,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,511.80 : 606,986.40 = 179,906.90 : x
  2. Step 2: Convert to fraction form
    404,511.80/606,986.40 = 179,906.90/x
  3. Step 3: Cross multiply
    404,511.80x = 606,986.40 × 179,906.90
  4. Step 4: Simplify right side
    404,511.80x = 109,201,041,566.16
  5. Step 5: Solve for x
    x = 109,201,041,566.16/404,511.80
  6. Step 6: Final answer
    x = 269,957.62

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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.