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Finding the Fourth Proportional to 321,305.70, 481,958.55 and 246,656.10

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Solution

The fourth proportional to 321,305.70, 481,958.55 and 246,656.10 is: 369,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,305.70 : 481,958.55 = 246,656.10 : x
  2. Step 2: Convert to fraction form
    321,305.70/481,958.55 = 246,656.10/x
  3. Step 3: Cross multiply
    321,305.70x = 481,958.55 × 246,656.10
  4. Step 4: Simplify right side
    321,305.70x = 118,878,016,304.66
  5. Step 5: Solve for x
    x = 118,878,016,304.66/321,305.70
  6. Step 6: Final answer
    x = 369,984.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.