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Finding the Fourth Proportional to 539,578.80, 809,368.20 and 184,539.60

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Solution

The fourth proportional to 539,578.80, 809,368.20 and 184,539.60 is: 276,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,578.80 : 809,368.20 = 184,539.60 : x
  2. Step 2: Convert to fraction form
    539,578.80/809,368.20 = 184,539.60/x
  3. Step 3: Cross multiply
    539,578.80x = 809,368.20 × 184,539.60
  4. Step 4: Simplify right side
    539,578.80x = 149,360,483,880.72
  5. Step 5: Solve for x
    x = 149,360,483,880.72/539,578.80
  6. Step 6: Final answer
    x = 276,809.40

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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.