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Finding the Fourth Proportional to 277,779, 383,358.60 and 156,942.48

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Solution

The fourth proportional to 277,779, 383,358.60 and 156,942.48 is: 216,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,779 : 383,358.60 = 156,942.48 : x
  2. Step 2: Convert to fraction form
    277,779/383,358.60 = 156,942.48/x
  3. Step 3: Cross multiply
    277,779x = 383,358.60 × 156,942.48
  4. Step 4: Simplify right side
    277,779x = 60,165,249,413.33
  5. Step 5: Solve for x
    x = 60,165,249,413.33/277,779
  6. Step 6: Final answer
    x = 216,593.94

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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.