Home / 1,289,245.38-1,779,213.98-716,285.55

Finding the Fourth Proportional to 1,289,245.38, 1,779,213.98 and 716,285.55

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Solution

The fourth proportional to 1,289,245.38, 1,779,213.98 and 716,285.55 is: 988,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,245.38 : 1,779,213.98 = 716,285.55 : x
  2. Step 2: Convert to fraction form
    1,289,245.38/1,779,213.98 = 716,285.55/x
  3. Step 3: Cross multiply
    1,289,245.38x = 1,779,213.98 × 716,285.55
  4. Step 4: Simplify right side
    1,289,245.38x = 1,274,425,260,650.56
  5. Step 5: Solve for x
    x = 1,274,425,260,650.56/1,289,245.38
  6. Step 6: Final answer
    x = 988,504.81

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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.