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Finding the Fourth Proportional to 633,092.40, 949,638.60 and 212,266.80

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Solution

The fourth proportional to 633,092.40, 949,638.60 and 212,266.80 is: 318,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,092.40 : 949,638.60 = 212,266.80 : x
  2. Step 2: Convert to fraction form
    633,092.40/949,638.60 = 212,266.80/x
  3. Step 3: Cross multiply
    633,092.40x = 949,638.60 × 212,266.80
  4. Step 4: Simplify right side
    633,092.40x = 201,576,746,778.48
  5. Step 5: Solve for x
    x = 201,576,746,778.48/633,092.40
  6. Step 6: Final answer
    x = 318,400.20

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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.