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Finding the Fourth Proportional to 627,789.96, 866,339.55 and 341,317.26

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Solution

The fourth proportional to 627,789.96, 866,339.55 and 341,317.26 is: 471,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,789.96 : 866,339.55 = 341,317.26 : x
  2. Step 2: Convert to fraction form
    627,789.96/866,339.55 = 341,317.26/x
  3. Step 3: Cross multiply
    627,789.96x = 866,339.55 × 341,317.26
  4. Step 4: Simplify right side
    627,789.96x = 295,696,641,435.63
  5. Step 5: Solve for x
    x = 295,696,641,435.63/627,789.96
  6. Step 6: Final answer
    x = 471,012.06

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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.