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Finding the Fourth Proportional to 539,566.80, 809,350.20 and 531,693.60

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Solution

The fourth proportional to 539,566.80, 809,350.20 and 531,693.60 is: 797,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,566.80 : 809,350.20 = 531,693.60 : x
  2. Step 2: Convert to fraction form
    539,566.80/809,350.20 = 531,693.60/x
  3. Step 3: Cross multiply
    539,566.80x = 809,350.20 × 531,693.60
  4. Step 4: Simplify right side
    539,566.80x = 430,326,321,498.72
  5. Step 5: Solve for x
    x = 430,326,321,498.72/539,566.80
  6. Step 6: Final answer
    x = 797,540.40

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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.