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Finding the Fourth Proportional to 567,503.40, 851,786.44 and 287,217.48

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Solution

The fourth proportional to 567,503.40, 851,786.44 and 287,217.48 is: 431,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,503.40 : 851,786.44 = 287,217.48 : x
  2. Step 2: Convert to fraction form
    567,503.40/851,786.44 = 287,217.48/x
  3. Step 3: Cross multiply
    567,503.40x = 851,786.44 × 287,217.48
  4. Step 4: Simplify right side
    567,503.40x = 244,647,954,794.97
  5. Step 5: Solve for x
    x = 244,647,954,794.97/567,503.40
  6. Step 6: Final answer
    x = 431,095.13

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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.