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Finding the Fourth Proportional to 277,771.92, 383,333.10 and 156,918.30

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Solution

The fourth proportional to 277,771.92, 383,333.10 and 156,918.30 is: 216,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,771.92 : 383,333.10 = 156,918.30 : x
  2. Step 2: Convert to fraction form
    277,771.92/383,333.10 = 156,918.30/x
  3. Step 3: Cross multiply
    277,771.92x = 383,333.10 × 156,918.30
  4. Step 4: Simplify right side
    277,771.92x = 60,151,978,385.73
  5. Step 5: Solve for x
    x = 60,151,978,385.73/277,771.92
  6. Step 6: Final answer
    x = 216,551.69

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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.