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Finding the Fourth Proportional to 277,212.54, 382,551.45 and 156,354.83

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Solution

The fourth proportional to 277,212.54, 382,551.45 and 156,354.83 is: 215,768.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,212.54 : 382,551.45 = 156,354.83 : x
  2. Step 2: Convert to fraction form
    277,212.54/382,551.45 = 156,354.83/x
  3. Step 3: Cross multiply
    277,212.54x = 382,551.45 × 156,354.83
  4. Step 4: Simplify right side
    277,212.54x = 59,813,765,018.25
  5. Step 5: Solve for x
    x = 59,813,765,018.25/277,212.54
  6. Step 6: Final answer
    x = 215,768.61

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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.