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Finding the Fourth Proportional to 277,353.38, 382,747.74 and 156,520.28

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Solution

The fourth proportional to 277,353.38, 382,747.74 and 156,520.28 is: 215,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,353.38 : 382,747.74 = 156,520.28 : x
  2. Step 2: Convert to fraction form
    277,353.38/382,747.74 = 156,520.28/x
  3. Step 3: Cross multiply
    277,353.38x = 382,747.74 × 156,520.28
  4. Step 4: Simplify right side
    277,353.38x = 59,907,783,434.17
  5. Step 5: Solve for x
    x = 59,907,783,434.17/277,353.38
  6. Step 6: Final answer
    x = 215,998.03

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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.