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Finding the Fourth Proportional to 475,865.50, 656,752.72 and 274,661.50

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Solution

The fourth proportional to 475,865.50, 656,752.72 and 274,661.50 is: 379,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,865.50 : 656,752.72 = 274,661.50 : x
  2. Step 2: Convert to fraction form
    475,865.50/656,752.72 = 274,661.50/x
  3. Step 3: Cross multiply
    475,865.50x = 656,752.72 × 274,661.50
  4. Step 4: Simplify right side
    475,865.50x = 180,384,687,204.28
  5. Step 5: Solve for x
    x = 180,384,687,204.28/475,865.50
  6. Step 6: Final answer
    x = 379,066.54

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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.