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Finding the Fourth Proportional to 539,446.80, 809,170.20 and 184,429.20

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Solution

The fourth proportional to 539,446.80, 809,170.20 and 184,429.20 is: 276,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,446.80 : 809,170.20 = 184,429.20 : x
  2. Step 2: Convert to fraction form
    539,446.80/809,170.20 = 184,429.20/x
  3. Step 3: Cross multiply
    539,446.80x = 809,170.20 × 184,429.20
  4. Step 4: Simplify right side
    539,446.80x = 149,234,612,649.84
  5. Step 5: Solve for x
    x = 149,234,612,649.84/539,446.80
  6. Step 6: Final answer
    x = 276,643.80

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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.