Home / 445,121.90-614,481.12-254,098.40

Finding the Fourth Proportional to 445,121.90, 614,481.12 and 254,098.40

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Solution

The fourth proportional to 445,121.90, 614,481.12 and 254,098.40 is: 350,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,121.90 : 614,481.12 = 254,098.40 : x
  2. Step 2: Convert to fraction form
    445,121.90/614,481.12 = 254,098.40/x
  3. Step 3: Cross multiply
    445,121.90x = 614,481.12 × 254,098.40
  4. Step 4: Simplify right side
    445,121.90x = 156,138,669,422.21
  5. Step 5: Solve for x
    x = 156,138,669,422.21/445,121.90
  6. Step 6: Final answer
    x = 350,777.33

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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.