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Finding the Fourth Proportional to 681,990.90, 941,203.49 and 376,127.12

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Solution

The fourth proportional to 681,990.90, 941,203.49 and 376,127.12 is: 519,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,990.90 : 941,203.49 = 376,127.12 : x
  2. Step 2: Convert to fraction form
    681,990.90/941,203.49 = 376,127.12/x
  3. Step 3: Cross multiply
    681,990.90x = 941,203.49 × 376,127.12
  4. Step 4: Simplify right side
    681,990.90x = 354,012,151,441.00
  5. Step 5: Solve for x
    x = 354,012,151,441.00/681,990.90
  6. Step 6: Final answer
    x = 519,086.33

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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.