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Finding the Fourth Proportional to 681,994.90, 941,209.01 and 376,131.12

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Solution

The fourth proportional to 681,994.90, 941,209.01 and 376,131.12 is: 519,091.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,994.90 : 941,209.01 = 376,131.12 : x
  2. Step 2: Convert to fraction form
    681,994.90/941,209.01 = 376,131.12/x
  3. Step 3: Cross multiply
    681,994.90x = 941,209.01 × 376,131.12
  4. Step 4: Simplify right side
    681,994.90x = 354,017,999,085.39
  5. Step 5: Solve for x
    x = 354,017,999,085.39/681,994.90
  6. Step 6: Final answer
    x = 519,091.86

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Double scale
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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.