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Finding the Fourth Proportional to 593,906.40, 890,859.60 and 539,992.80

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Solution

The fourth proportional to 593,906.40, 890,859.60 and 539,992.80 is: 809,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,906.40 : 890,859.60 = 539,992.80 : x
  2. Step 2: Convert to fraction form
    593,906.40/890,859.60 = 539,992.80/x
  3. Step 3: Cross multiply
    593,906.40x = 890,859.60 × 539,992.80
  4. Step 4: Simplify right side
    593,906.40x = 481,057,769,810.88
  5. Step 5: Solve for x
    x = 481,057,769,810.88/593,906.40
  6. Step 6: Final answer
    x = 809,989.20

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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.