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Finding the Fourth Proportional to 361,638.30, 499,076.66 and 200,483.12

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Solution

The fourth proportional to 361,638.30, 499,076.66 and 200,483.12 is: 276,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,638.30 : 499,076.66 = 200,483.12 : x
  2. Step 2: Convert to fraction form
    361,638.30/499,076.66 = 200,483.12/x
  3. Step 3: Cross multiply
    361,638.30x = 499,076.66 × 200,483.12
  4. Step 4: Simplify right side
    361,638.30x = 100,056,445,915.98
  5. Step 5: Solve for x
    x = 100,056,445,915.98/361,638.30
  6. Step 6: Final answer
    x = 276,675.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.