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Finding the Fourth Proportional to 627,908.82, 866,496 and 356,001.93

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Solution

The fourth proportional to 627,908.82, 866,496 and 356,001.93 is: 491,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,908.82 : 866,496 = 356,001.93 : x
  2. Step 2: Convert to fraction form
    627,908.82/866,496 = 356,001.93/x
  3. Step 3: Cross multiply
    627,908.82x = 866,496 × 356,001.93
  4. Step 4: Simplify right side
    627,908.82x = 308,474,248,337.28
  5. Step 5: Solve for x
    x = 308,474,248,337.28/627,908.82
  6. Step 6: Final answer
    x = 491,272.36

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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.