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Finding the Fourth Proportional to 554,194.60, 831,291.90 and 199,220.20

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Solution

The fourth proportional to 554,194.60, 831,291.90 and 199,220.20 is: 298,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,194.60 : 831,291.90 = 199,220.20 : x
  2. Step 2: Convert to fraction form
    554,194.60/831,291.90 = 199,220.20/x
  3. Step 3: Cross multiply
    554,194.60x = 831,291.90 × 199,220.20
  4. Step 4: Simplify right side
    554,194.60x = 165,610,138,576.38
  5. Step 5: Solve for x
    x = 165,610,138,576.38/554,194.60
  6. Step 6: Final answer
    x = 298,830.30

Related Problems

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Half scale
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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.