Home / 1,225,517.53-1,691,189.88-681,641.62

Finding the Fourth Proportional to 1,225,517.53, 1,691,189.88 and 681,641.62

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Solution

The fourth proportional to 1,225,517.53, 1,691,189.88 and 681,641.62 is: 940,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,517.53 : 1,691,189.88 = 681,641.62 : x
  2. Step 2: Convert to fraction form
    1,225,517.53/1,691,189.88 = 681,641.62/x
  3. Step 3: Cross multiply
    1,225,517.53x = 1,691,189.88 × 681,641.62
  4. Step 4: Simplify right side
    1,225,517.53x = 1,152,785,409,530.81
  5. Step 5: Solve for x
    x = 1,152,785,409,530.81/1,225,517.53
  6. Step 6: Final answer
    x = 940,651.91

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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.