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Finding the Fourth Proportional to 615,997.12, 850,067 and 344,068.95

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Solution

The fourth proportional to 615,997.12, 850,067 and 344,068.95 is: 474,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,997.12 : 850,067 = 344,068.95 : x
  2. Step 2: Convert to fraction form
    615,997.12/850,067 = 344,068.95/x
  3. Step 3: Cross multiply
    615,997.12x = 850,067 × 344,068.95
  4. Step 4: Simplify right side
    615,997.12x = 292,481,660,119.65
  5. Step 5: Solve for x
    x = 292,481,660,119.65/615,997.12
  6. Step 6: Final answer
    x = 474,810.11

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1.5x scale

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.