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Finding the Fourth Proportional to 539,444.80, 809,167.20 and 184,427.20

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Solution

The fourth proportional to 539,444.80, 809,167.20 and 184,427.20 is: 276,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,444.80 : 809,167.20 = 184,427.20 : x
  2. Step 2: Convert to fraction form
    539,444.80/809,167.20 = 184,427.20/x
  3. Step 3: Cross multiply
    539,444.80x = 809,167.20 × 184,427.20
  4. Step 4: Simplify right side
    539,444.80x = 149,232,441,027.84
  5. Step 5: Solve for x
    x = 149,232,441,027.84/539,444.80
  6. Step 6: Final answer
    x = 276,640.80

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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.