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Finding the Fourth Proportional to 404,998.80, 607,498.20 and 168,511.20

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Solution

The fourth proportional to 404,998.80, 607,498.20 and 168,511.20 is: 252,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,998.80 : 607,498.20 = 168,511.20 : x
  2. Step 2: Convert to fraction form
    404,998.80/607,498.20 = 168,511.20/x
  3. Step 3: Cross multiply
    404,998.80x = 607,498.20 × 168,511.20
  4. Step 4: Simplify right side
    404,998.80x = 102,370,250,679.84
  5. Step 5: Solve for x
    x = 102,370,250,679.84/404,998.80
  6. Step 6: Final answer
    x = 252,766.80

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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.