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Finding the Fourth Proportional to 627,991.40, 942,044.70 and 207,268.20

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Solution

The fourth proportional to 627,991.40, 942,044.70 and 207,268.20 is: 310,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,991.40 : 942,044.70 = 207,268.20 : x
  2. Step 2: Convert to fraction form
    627,991.40/942,044.70 = 207,268.20/x
  3. Step 3: Cross multiply
    627,991.40x = 942,044.70 × 207,268.20
  4. Step 4: Simplify right side
    627,991.40x = 195,255,909,288.54
  5. Step 5: Solve for x
    x = 195,255,909,288.54/627,991.40
  6. Step 6: Final answer
    x = 310,921.31

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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.