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Finding the Fourth Proportional to 627,878.50, 866,483.14 and 341,400.52

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Solution

The fourth proportional to 627,878.50, 866,483.14 and 341,400.52 is: 471,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,878.50 : 866,483.14 = 341,400.52 : x
  2. Step 2: Convert to fraction form
    627,878.50/866,483.14 = 341,400.52/x
  3. Step 3: Cross multiply
    627,878.50x = 866,483.14 × 341,400.52
  4. Step 4: Simplify right side
    627,878.50x = 295,817,794,567.23
  5. Step 5: Solve for x
    x = 295,817,794,567.23/627,878.50
  6. Step 6: Final answer
    x = 471,138.60

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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.