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Finding the Fourth Proportional to 627,797.76, 866,356.65 and 341,317.86

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Solution

The fourth proportional to 627,797.76, 866,356.65 and 341,317.86 is: 471,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,797.76 : 866,356.65 = 341,317.86 : x
  2. Step 2: Convert to fraction form
    627,797.76/866,356.65 = 341,317.86/x
  3. Step 3: Cross multiply
    627,797.76x = 866,356.65 × 341,317.86
  4. Step 4: Simplify right side
    627,797.76x = 295,702,997,774.77
  5. Step 5: Solve for x
    x = 295,702,997,774.77/627,797.76
  6. Step 6: Final answer
    x = 471,016.33

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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.