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Finding the Fourth Proportional to 554,517.80, 831,776.70 and 180,578.60

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Solution

The fourth proportional to 554,517.80, 831,776.70 and 180,578.60 is: 270,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,517.80 : 831,776.70 = 180,578.60 : x
  2. Step 2: Convert to fraction form
    554,517.80/831,776.70 = 180,578.60/x
  3. Step 3: Cross multiply
    554,517.80x = 831,776.70 × 180,578.60
  4. Step 4: Simplify right side
    554,517.80x = 150,201,071,998.62
  5. Step 5: Solve for x
    x = 150,201,071,998.62/554,517.80
  6. Step 6: Final answer
    x = 270,867.90

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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.