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Finding the Fourth Proportional to 627,956.78, 866,603.15 and 359,736.62

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Solution

The fourth proportional to 627,956.78, 866,603.15 and 359,736.62 is: 496,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,956.78 : 866,603.15 = 359,736.62 : x
  2. Step 2: Convert to fraction form
    627,956.78/866,603.15 = 359,736.62/x
  3. Step 3: Cross multiply
    627,956.78x = 866,603.15 × 359,736.62
  4. Step 4: Simplify right side
    627,956.78x = 311,748,881,930.65
  5. Step 5: Solve for x
    x = 311,748,881,930.65/627,956.78
  6. Step 6: Final answer
    x = 496,449.59

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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.