Home / 445,789.69-668,529.02-196,335.61

Finding the Fourth Proportional to 445,789.69, 668,529.02 and 196,335.61

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Solution

The fourth proportional to 445,789.69, 668,529.02 and 196,335.61 is: 294,434.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,789.69 : 668,529.02 = 196,335.61 : x
  2. Step 2: Convert to fraction form
    445,789.69/668,529.02 = 196,335.61/x
  3. Step 3: Cross multiply
    445,789.69x = 668,529.02 × 196,335.61
  4. Step 4: Simplify right side
    445,789.69x = 131,256,051,962.72
  5. Step 5: Solve for x
    x = 131,256,051,962.72/445,789.69
  6. Step 6: Final answer
    x = 294,434.92

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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.