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Finding the Fourth Proportional to 627,774.44, 866,345.82 and 341,313.80

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Solution

The fourth proportional to 627,774.44, 866,345.82 and 341,313.80 is: 471,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,774.44 : 866,345.82 = 341,313.80 : x
  2. Step 2: Convert to fraction form
    627,774.44/866,345.82 = 341,313.80/x
  3. Step 3: Cross multiply
    627,774.44x = 866,345.82 × 341,313.80
  4. Step 4: Simplify right side
    627,774.44x = 295,695,783,938.32
  5. Step 5: Solve for x
    x = 295,695,783,938.32/627,774.44
  6. Step 6: Final answer
    x = 471,022.34

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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.