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Finding the Fourth Proportional to 615,990.25, 850,057.59 and 344,062.02

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Solution

The fourth proportional to 615,990.25, 850,057.59 and 344,062.02 is: 474,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,990.25 : 850,057.59 = 344,062.02 : x
  2. Step 2: Convert to fraction form
    615,990.25/850,057.59 = 344,062.02/x
  3. Step 3: Cross multiply
    615,990.25x = 850,057.59 × 344,062.02
  4. Step 4: Simplify right side
    615,990.25x = 292,472,531,531.73
  5. Step 5: Solve for x
    x = 292,472,531,531.73/615,990.25
  6. Step 6: Final answer
    x = 474,800.59

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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.