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Finding the Fourth Proportional to 468,641.13, 646,725.11 and 253,781.43

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Solution

The fourth proportional to 468,641.13, 646,725.11 and 253,781.43 is: 350,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,641.13 : 646,725.11 = 253,781.43 : x
  2. Step 2: Convert to fraction form
    468,641.13/646,725.11 = 253,781.43/x
  3. Step 3: Cross multiply
    468,641.13x = 646,725.11 × 253,781.43
  4. Step 4: Simplify right side
    468,641.13x = 164,126,821,963.80
  5. Step 5: Solve for x
    x = 164,126,821,963.80/468,641.13
  6. Step 6: Final answer
    x = 350,218.56

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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.