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Finding the Fourth Proportional to 444,106.80, 665,722.80 and 219,501.90

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Solution

The fourth proportional to 444,106.80, 665,722.80 and 219,501.90 is: 329,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,106.80 : 665,722.80 = 219,501.90 : x
  2. Step 2: Convert to fraction form
    444,106.80/665,722.80 = 219,501.90/x
  3. Step 3: Cross multiply
    444,106.80x = 665,722.80 × 219,501.90
  4. Step 4: Simplify right side
    444,106.80x = 146,127,419,473.32
  5. Step 5: Solve for x
    x = 146,127,419,473.32/444,106.80
  6. Step 6: Final answer
    x = 329,036.66

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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.