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Finding the Fourth Proportional to 554,230.80, 831,346.20 and 199,256.40

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Solution

The fourth proportional to 554,230.80, 831,346.20 and 199,256.40 is: 298,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,230.80 : 831,346.20 = 199,256.40 : x
  2. Step 2: Convert to fraction form
    554,230.80/831,346.20 = 199,256.40/x
  3. Step 3: Cross multiply
    554,230.80x = 831,346.20 × 199,256.40
  4. Step 4: Simplify right side
    554,230.80x = 165,651,050,965.68
  5. Step 5: Solve for x
    x = 165,651,050,965.68/554,230.80
  6. Step 6: Final answer
    x = 298,884.60

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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.