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Finding the Fourth Proportional to 277,630.83, 383,138.40 and 156,790.29

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Solution

The fourth proportional to 277,630.83, 383,138.40 and 156,790.29 is: 216,375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,630.83 : 383,138.40 = 156,790.29 : x
  2. Step 2: Convert to fraction form
    277,630.83/383,138.40 = 156,790.29/x
  3. Step 3: Cross multiply
    277,630.83x = 383,138.40 × 156,790.29
  4. Step 4: Simplify right side
    277,630.83x = 60,072,380,846.14
  5. Step 5: Solve for x
    x = 60,072,380,846.14/277,630.83
  6. Step 6: Final answer
    x = 216,375.04

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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.