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Finding the Fourth Proportional to 627,782.08, 866,300.45 and 352,124.77

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Solution

The fourth proportional to 627,782.08, 866,300.45 and 352,124.77 is: 485,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,782.08 : 866,300.45 = 352,124.77 : x
  2. Step 2: Convert to fraction form
    627,782.08/866,300.45 = 352,124.77/x
  3. Step 3: Cross multiply
    627,782.08x = 866,300.45 × 352,124.77
  4. Step 4: Simplify right side
    627,782.08x = 305,045,842,375.64
  5. Step 5: Solve for x
    x = 305,045,842,375.64/627,782.08
  6. Step 6: Final answer
    x = 485,910.41

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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.