Home / 2,561,078.20-3,841,811.70-763,821.40

Finding the Fourth Proportional to 2,561,078.20, 3,841,811.70 and 763,821.40

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Solution

The fourth proportional to 2,561,078.20, 3,841,811.70 and 763,821.40 is: 1,145,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561,078.20 : 3,841,811.70 = 763,821.40 : x
  2. Step 2: Convert to fraction form
    2,561,078.20/3,841,811.70 = 763,821.40/x
  3. Step 3: Cross multiply
    2,561,078.20x = 3,841,811.70 × 763,821.40
  4. Step 4: Simplify right side
    2,561,078.20x = 2,934,457,991,230.38
  5. Step 5: Solve for x
    x = 2,934,457,991,230.38/2,561,078.20
  6. Step 6: Final answer
    x = 1,145,790.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.