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Finding the Fourth Proportional to 482,604.70, 666,063.30 and 278,614.84

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Solution

The fourth proportional to 482,604.70, 666,063.30 and 278,614.84 is: 384,528.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,604.70 : 666,063.30 = 278,614.84 : x
  2. Step 2: Convert to fraction form
    482,604.70/666,063.30 = 278,614.84/x
  3. Step 3: Cross multiply
    482,604.70x = 666,063.30 × 278,614.84
  4. Step 4: Simplify right side
    482,604.70x = 185,575,119,759.37
  5. Step 5: Solve for x
    x = 185,575,119,759.37/482,604.70
  6. Step 6: Final answer
    x = 384,528.21

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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.