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Finding the Fourth Proportional to 567,456.80, 851,185.20 and 515,847.20

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Solution

The fourth proportional to 567,456.80, 851,185.20 and 515,847.20 is: 773,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,456.80 : 851,185.20 = 515,847.20 : x
  2. Step 2: Convert to fraction form
    567,456.80/851,185.20 = 515,847.20/x
  3. Step 3: Cross multiply
    567,456.80x = 851,185.20 × 515,847.20
  4. Step 4: Simplify right side
    567,456.80x = 439,081,502,101.44
  5. Step 5: Solve for x
    x = 439,081,502,101.44/567,456.80
  6. Step 6: Final answer
    x = 773,770.80

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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.