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Finding the Fourth Proportional to 627,799.05, 866,323.89 and 352,141.74

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Solution

The fourth proportional to 627,799.05, 866,323.89 and 352,141.74 is: 485,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,799.05 : 866,323.89 = 352,141.74 : x
  2. Step 2: Convert to fraction form
    627,799.05/866,323.89 = 352,141.74/x
  3. Step 3: Cross multiply
    627,799.05x = 866,323.89 × 352,141.74
  4. Step 4: Simplify right side
    627,799.05x = 305,068,802,028.17
  5. Step 5: Solve for x
    x = 305,068,802,028.17/627,799.05
  6. Step 6: Final answer
    x = 485,933.84

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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.