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Finding the Fourth Proportional to 277,755.69, 383,326.46 and 156,919.16

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Solution

The fourth proportional to 277,755.69, 383,326.46 and 156,919.16 is: 216,561.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,755.69 : 383,326.46 = 156,919.16 : x
  2. Step 2: Convert to fraction form
    277,755.69/383,326.46 = 156,919.16/x
  3. Step 3: Cross multiply
    277,755.69x = 383,326.46 × 156,919.16
  4. Step 4: Simplify right side
    277,755.69x = 60,151,266,108.97
  5. Step 5: Solve for x
    x = 60,151,266,108.97/277,755.69
  6. Step 6: Final answer
    x = 216,561.78

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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.