Home / 681,987.09-941,198.21-376,123.29

Finding the Fourth Proportional to 681,987.09, 941,198.21 and 376,123.29

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Solution

The fourth proportional to 681,987.09, 941,198.21 and 376,123.29 is: 519,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,987.09 : 941,198.21 = 376,123.29 : x
  2. Step 2: Convert to fraction form
    681,987.09/941,198.21 = 376,123.29/x
  3. Step 3: Cross multiply
    681,987.09x = 941,198.21 × 376,123.29
  4. Step 4: Simplify right side
    681,987.09x = 354,006,570,580.62
  5. Step 5: Solve for x
    x = 354,006,570,580.62/681,987.09
  6. Step 6: Final answer
    x = 519,081.05

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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.