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Finding the Fourth Proportional to 627,936.36, 866,525.81 and 356,022.55

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Solution

The fourth proportional to 627,936.36, 866,525.81 and 356,022.55 is: 491,296.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,936.36 : 866,525.81 = 356,022.55 : x
  2. Step 2: Convert to fraction form
    627,936.36/866,525.81 = 356,022.55/x
  3. Step 3: Cross multiply
    627,936.36x = 866,525.81 × 356,022.55
  4. Step 4: Simplify right side
    627,936.36x = 308,502,727,240.76
  5. Step 5: Solve for x
    x = 308,502,727,240.76/627,936.36
  6. Step 6: Final answer
    x = 491,296.17

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1.5x scale

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.