Home / 432,826.90-648,256.20-273,394.60

Finding the Fourth Proportional to 432,826.90, 648,256.20 and 273,394.60

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Solution

The fourth proportional to 432,826.90, 648,256.20 and 273,394.60 is: 409,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,826.90 : 648,256.20 = 273,394.60 : x
  2. Step 2: Convert to fraction form
    432,826.90/648,256.20 = 273,394.60/x
  3. Step 3: Cross multiply
    432,826.90x = 648,256.20 × 273,394.60
  4. Step 4: Simplify right side
    432,826.90x = 177,229,744,496.52
  5. Step 5: Solve for x
    x = 177,229,744,496.52/432,826.90
  6. Step 6: Final answer
    x = 409,470.26

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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.