Home / 3,111,198.75-4,293,457.16-1,680,414.75

Finding the Fourth Proportional to 3,111,198.75, 4,293,457.16 and 1,680,414.75

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Solution

The fourth proportional to 3,111,198.75, 4,293,457.16 and 1,680,414.75 is: 2,318,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,198.75 : 4,293,457.16 = 1,680,414.75 : x
  2. Step 2: Convert to fraction form
    3,111,198.75/4,293,457.16 = 1,680,414.75/x
  3. Step 3: Cross multiply
    3,111,198.75x = 4,293,457.16 × 1,680,414.75
  4. Step 4: Simplify right side
    3,111,198.75x = 7,214,788,731,755.04
  5. Step 5: Solve for x
    x = 7,214,788,731,755.04/3,111,198.75
  6. Step 6: Final answer
    x = 2,318,973.91

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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.