Home / 1,225,509.52-1,691,178.88-681,633.60

Finding the Fourth Proportional to 1,225,509.52, 1,691,178.88 and 681,633.60

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Solution

The fourth proportional to 1,225,509.52, 1,691,178.88 and 681,633.60 is: 940,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,509.52 : 1,691,178.88 = 681,633.60 : x
  2. Step 2: Convert to fraction form
    1,225,509.52/1,691,178.88 = 681,633.60/x
  3. Step 3: Cross multiply
    1,225,509.52x = 1,691,178.88 × 681,633.60
  4. Step 4: Simplify right side
    1,225,509.52x = 1,152,764,348,218.37
  5. Step 5: Solve for x
    x = 1,152,764,348,218.37/1,225,509.52
  6. Step 6: Final answer
    x = 940,640.88

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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.