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Finding the Fourth Proportional to 627,837.72, 866,411.67 and 341,357.88

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Solution

The fourth proportional to 627,837.72, 866,411.67 and 341,357.88 is: 471,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,837.72 : 866,411.67 = 341,357.88 : x
  2. Step 2: Convert to fraction form
    627,837.72/866,411.67 = 341,357.88/x
  3. Step 3: Cross multiply
    627,837.72x = 866,411.67 × 341,357.88
  4. Step 4: Simplify right side
    627,837.72x = 295,756,450,878.46
  5. Step 5: Solve for x
    x = 295,756,450,878.46/627,837.72
  6. Step 6: Final answer
    x = 471,071.49

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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.