Home / 1,225,516.53-1,691,188.50-681,640.62

Finding the Fourth Proportional to 1,225,516.53, 1,691,188.50 and 681,640.62

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Solution

The fourth proportional to 1,225,516.53, 1,691,188.50 and 681,640.62 is: 940,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,516.53 : 1,691,188.50 = 681,640.62 : x
  2. Step 2: Convert to fraction form
    1,225,516.53/1,691,188.50 = 681,640.62/x
  3. Step 3: Cross multiply
    1,225,516.53x = 1,691,188.50 × 681,640.62
  4. Step 4: Simplify right side
    1,225,516.53x = 1,152,782,777,676.87
  5. Step 5: Solve for x
    x = 1,152,782,777,676.87/1,225,516.53
  6. Step 6: Final answer
    x = 940,650.53

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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.