Home / 430,811.62-645,918.17-190,794.73

Finding the Fourth Proportional to 430,811.62, 645,918.17 and 190,794.73

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Solution

The fourth proportional to 430,811.62, 645,918.17 and 190,794.73 is: 286,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,811.62 : 645,918.17 = 190,794.73 : x
  2. Step 2: Convert to fraction form
    430,811.62/645,918.17 = 190,794.73/x
  3. Step 3: Cross multiply
    430,811.62x = 645,918.17 × 190,794.73
  4. Step 4: Simplify right side
    430,811.62x = 123,237,781,709.44
  5. Step 5: Solve for x
    x = 123,237,781,709.44/430,811.62
  6. Step 6: Final answer
    x = 286,059.56

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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.