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Finding the Fourth Proportional to 627,855.19, 866,434.05 and 341,375.28

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Solution

The fourth proportional to 627,855.19, 866,434.05 and 341,375.28 is: 471,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,855.19 : 866,434.05 = 341,375.28 : x
  2. Step 2: Convert to fraction form
    627,855.19/866,434.05 = 341,375.28/x
  3. Step 3: Cross multiply
    627,855.19x = 866,434.05 × 341,375.28
  4. Step 4: Simplify right side
    627,855.19x = 295,779,166,420.28
  5. Step 5: Solve for x
    x = 295,779,166,420.28/627,855.19
  6. Step 6: Final answer
    x = 471,094.56

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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.