Home / 1,253,105.10-1,729,287-680,145.54

Finding the Fourth Proportional to 1,253,105.10, 1,729,287 and 680,145.54

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Solution

The fourth proportional to 1,253,105.10, 1,729,287 and 680,145.54 is: 938,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,105.10 : 1,729,287 = 680,145.54 : x
  2. Step 2: Convert to fraction form
    1,253,105.10/1,729,287 = 680,145.54/x
  3. Step 3: Cross multiply
    1,253,105.10x = 1,729,287 × 680,145.54
  4. Step 4: Simplify right side
    1,253,105.10x = 1,176,166,840,429.98
  5. Step 5: Solve for x
    x = 1,176,166,840,429.98/1,253,105.10
  6. Step 6: Final answer
    x = 938,601.91

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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.