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Finding the Fourth Proportional to 615,995.94, 850,065.30 and 344,067.80

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Solution

The fourth proportional to 615,995.94, 850,065.30 and 344,067.80 is: 474,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,995.94 : 850,065.30 = 344,067.80 : x
  2. Step 2: Convert to fraction form
    615,995.94/850,065.30 = 344,067.80/x
  3. Step 3: Cross multiply
    615,995.94x = 850,065.30 × 344,067.80
  4. Step 4: Simplify right side
    615,995.94x = 292,480,093,377.01
  5. Step 5: Solve for x
    x = 292,480,093,377.01/615,995.94
  6. Step 6: Final answer
    x = 474,808.48

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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.