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Finding the Fourth Proportional to 451,090.62, 622,495.53 and 247,131.61

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Solution

The fourth proportional to 451,090.62, 622,495.53 and 247,131.61 is: 341,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,090.62 : 622,495.53 = 247,131.61 : x
  2. Step 2: Convert to fraction form
    451,090.62/622,495.53 = 247,131.61/x
  3. Step 3: Cross multiply
    451,090.62x = 622,495.53 × 247,131.61
  4. Step 4: Simplify right side
    451,090.62x = 153,838,320,990.46
  5. Step 5: Solve for x
    x = 153,838,320,990.46/451,090.62
  6. Step 6: Final answer
    x = 341,036.40

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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.