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Finding the Fourth Proportional to 469,489.01, 647,891.60 and 254,629.62

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Solution

The fourth proportional to 469,489.01, 647,891.60 and 254,629.62 is: 351,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,489.01 : 647,891.60 = 254,629.62 : x
  2. Step 2: Convert to fraction form
    469,489.01/647,891.60 = 254,629.62/x
  3. Step 3: Cross multiply
    469,489.01x = 647,891.60 × 254,629.62
  4. Step 4: Simplify right side
    469,489.01x = 164,972,390,636.04
  5. Step 5: Solve for x
    x = 164,972,390,636.04/469,489.01
  6. Step 6: Final answer
    x = 351,387.12

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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.