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Finding the Fourth Proportional to 616,959.41, 851,447.37 and 345,052.60

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Solution

The fourth proportional to 616,959.41, 851,447.37 and 345,052.60 is: 476,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,959.41 : 851,447.37 = 345,052.60 : x
  2. Step 2: Convert to fraction form
    616,959.41/851,447.37 = 345,052.60/x
  3. Step 3: Cross multiply
    616,959.41x = 851,447.37 × 345,052.60
  4. Step 4: Simplify right side
    616,959.41x = 293,794,128,728.48
  5. Step 5: Solve for x
    x = 293,794,128,728.48/616,959.41
  6. Step 6: Final answer
    x = 476,196.85

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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.