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Finding the Fourth Proportional to 627,861.89, 866,425.52 and 341,382.21

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Solution

The fourth proportional to 627,861.89, 866,425.52 and 341,382.21 is: 471,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861.89 : 866,425.52 = 341,382.21 : x
  2. Step 2: Convert to fraction form
    627,861.89/866,425.52 = 341,382.21/x
  3. Step 3: Cross multiply
    627,861.89x = 866,425.52 × 341,382.21
  4. Step 4: Simplify right side
    627,861.89x = 295,782,258,818.00
  5. Step 5: Solve for x
    x = 295,782,258,818.00/627,861.89
  6. Step 6: Final answer
    x = 471,094.46

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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.