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Finding the Fourth Proportional to 609,542.80, 851,260.40 and 609,542.80

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Solution

The fourth proportional to 609,542.80, 851,260.40 and 609,542.80 is: 851,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,542.80 : 851,260.40 = 609,542.80 : x
  2. Step 2: Convert to fraction form
    609,542.80/851,260.40 = 609,542.80/x
  3. Step 3: Cross multiply
    609,542.80x = 851,260.40 × 609,542.80
  4. Step 4: Simplify right side
    609,542.80x = 518,879,647,745.12
  5. Step 5: Solve for x
    x = 518,879,647,745.12/609,542.80
  6. Step 6: Final answer
    x = 851,260.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.