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Finding the Fourth Proportional to 277,720.86, 383,256 and 156,863.58

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Solution

The fourth proportional to 277,720.86, 383,256 and 156,863.58 is: 216,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,720.86 : 383,256 = 156,863.58 : x
  2. Step 2: Convert to fraction form
    277,720.86/383,256 = 156,863.58/x
  3. Step 3: Cross multiply
    277,720.86x = 383,256 × 156,863.58
  4. Step 4: Simplify right side
    277,720.86x = 60,118,908,216.48
  5. Step 5: Solve for x
    x = 60,118,908,216.48/277,720.86
  6. Step 6: Final answer
    x = 216,472.43

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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.