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Finding the Fourth Proportional to 494,044.40, 740,629.20 and 325,645.40

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Solution

The fourth proportional to 494,044.40, 740,629.20 and 325,645.40 is: 488,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,044.40 : 740,629.20 = 325,645.40 : x
  2. Step 2: Convert to fraction form
    494,044.40/740,629.20 = 325,645.40/x
  3. Step 3: Cross multiply
    494,044.40x = 740,629.20 × 325,645.40
  4. Step 4: Simplify right side
    494,044.40x = 241,182,492,085.68
  5. Step 5: Solve for x
    x = 241,182,492,085.68/494,044.40
  6. Step 6: Final answer
    x = 488,179.79

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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.