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Finding the Fourth Proportional to 633,172.10, 949,758.15 and 189,940.10

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Solution

The fourth proportional to 633,172.10, 949,758.15 and 189,940.10 is: 284,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,172.10 : 949,758.15 = 189,940.10 : x
  2. Step 2: Convert to fraction form
    633,172.10/949,758.15 = 189,940.10/x
  3. Step 3: Cross multiply
    633,172.10x = 949,758.15 × 189,940.10
  4. Step 4: Simplify right side
    633,172.10x = 180,397,157,986.82
  5. Step 5: Solve for x
    x = 180,397,157,986.82/633,172.10
  6. Step 6: Final answer
    x = 284,910.15

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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.