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Finding the Fourth Proportional to 484,081.74, 668,081.79 and 277,377.50

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Solution

The fourth proportional to 484,081.74, 668,081.79 and 277,377.50 is: 382,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,081.74 : 668,081.79 = 277,377.50 : x
  2. Step 2: Convert to fraction form
    484,081.74/668,081.79 = 277,377.50/x
  3. Step 3: Cross multiply
    484,081.74x = 668,081.79 × 277,377.50
  4. Step 4: Simplify right side
    484,081.74x = 185,310,858,375.93
  5. Step 5: Solve for x
    x = 185,310,858,375.93/484,081.74
  6. Step 6: Final answer
    x = 382,809.02

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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.