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Finding the Fourth Proportional to 554,133.90, 831,200.85 and 199,183.80

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Solution

The fourth proportional to 554,133.90, 831,200.85 and 199,183.80 is: 298,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,133.90 : 831,200.85 = 199,183.80 : x
  2. Step 2: Convert to fraction form
    554,133.90/831,200.85 = 199,183.80/x
  3. Step 3: Cross multiply
    554,133.90x = 831,200.85 × 199,183.80
  4. Step 4: Simplify right side
    554,133.90x = 165,561,743,866.23
  5. Step 5: Solve for x
    x = 165,561,743,866.23/554,133.90
  6. Step 6: Final answer
    x = 298,775.70

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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.