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Finding the Fourth Proportional to 277,540.40, 383,007.12 and 156,686.60

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Solution

The fourth proportional to 277,540.40, 383,007.12 and 156,686.60 is: 216,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,540.40 : 383,007.12 = 156,686.60 : x
  2. Step 2: Convert to fraction form
    277,540.40/383,007.12 = 156,686.60/x
  3. Step 3: Cross multiply
    277,540.40x = 383,007.12 × 156,686.60
  4. Step 4: Simplify right side
    277,540.40x = 60,012,083,408.59
  5. Step 5: Solve for x
    x = 60,012,083,408.59/277,540.40
  6. Step 6: Final answer
    x = 216,228.28

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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.