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Finding the Fourth Proportional to 567,518.80, 851,278.20 and 251,640.40

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Solution

The fourth proportional to 567,518.80, 851,278.20 and 251,640.40 is: 377,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,518.80 : 851,278.20 = 251,640.40 : x
  2. Step 2: Convert to fraction form
    567,518.80/851,278.20 = 251,640.40/x
  3. Step 3: Cross multiply
    567,518.80x = 851,278.20 × 251,640.40
  4. Step 4: Simplify right side
    567,518.80x = 214,215,986,759.28
  5. Step 5: Solve for x
    x = 214,215,986,759.28/567,518.80
  6. Step 6: Final answer
    x = 377,460.60

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Double scale
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Similar ratio
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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.