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Finding the Fourth Proportional to 627,783.60, 941,329.80 and 206,842.80

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Solution

The fourth proportional to 627,783.60, 941,329.80 and 206,842.80 is: 310,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,783.60 : 941,329.80 = 206,842.80 : x
  2. Step 2: Convert to fraction form
    627,783.60/941,329.80 = 206,842.80/x
  3. Step 3: Cross multiply
    627,783.60x = 941,329.80 × 206,842.80
  4. Step 4: Simplify right side
    627,783.60x = 194,707,291,555.44
  5. Step 5: Solve for x
    x = 194,707,291,555.44/627,783.60
  6. Step 6: Final answer
    x = 310,150.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.