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Finding the Fourth Proportional to 277,183.92, 382,490.90 and 156,354.90

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Solution

The fourth proportional to 277,183.92, 382,490.90 and 156,354.90 is: 215,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,183.92 : 382,490.90 = 156,354.90 : x
  2. Step 2: Convert to fraction form
    277,183.92/382,490.90 = 156,354.90/x
  3. Step 3: Cross multiply
    277,183.92x = 382,490.90 × 156,354.90
  4. Step 4: Simplify right side
    277,183.92x = 59,804,325,877.69
  5. Step 5: Solve for x
    x = 59,804,325,877.69/277,183.92
  6. Step 6: Final answer
    x = 215,756.84

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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.