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Finding the Fourth Proportional to 681,993.90, 941,207.63 and 376,130.12

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Solution

The fourth proportional to 681,993.90, 941,207.63 and 376,130.12 is: 519,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,993.90 : 941,207.63 = 376,130.12 : x
  2. Step 2: Convert to fraction form
    681,993.90/941,207.63 = 376,130.12/x
  3. Step 3: Cross multiply
    681,993.90x = 941,207.63 × 376,130.12
  4. Step 4: Simplify right side
    681,993.90x = 354,016,532,230.13
  5. Step 5: Solve for x
    x = 354,016,532,230.13/681,993.90
  6. Step 6: Final answer
    x = 519,090.47

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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.