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Finding the Fourth Proportional to 412,612.44, 618,964.92 and 370,231.96

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Solution

The fourth proportional to 412,612.44, 618,964.92 and 370,231.96 is: 555,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,612.44 : 618,964.92 = 370,231.96 : x
  2. Step 2: Convert to fraction form
    412,612.44/618,964.92 = 370,231.96/x
  3. Step 3: Cross multiply
    412,612.44x = 618,964.92 × 370,231.96
  4. Step 4: Simplify right side
    412,612.44x = 229,160,595,502.84
  5. Step 5: Solve for x
    x = 229,160,595,502.84/412,612.44
  6. Step 6: Final answer
    x = 555,389.45

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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.