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Finding the Fourth Proportional to 277,638.36, 383,148.78 and 156,797.82

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Solution

The fourth proportional to 277,638.36, 383,148.78 and 156,797.82 is: 216,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,638.36 : 383,148.78 = 156,797.82 : x
  2. Step 2: Convert to fraction form
    277,638.36/383,148.78 = 156,797.82/x
  3. Step 3: Cross multiply
    277,638.36x = 383,148.78 × 156,797.82
  4. Step 4: Simplify right side
    277,638.36x = 60,076,893,439.66
  5. Step 5: Solve for x
    x = 60,076,893,439.66/277,638.36
  6. Step 6: Final answer
    x = 216,385.42

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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.