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Finding the Fourth Proportional to 414,988.20, 622,555.20 and 148,903.20

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Solution

The fourth proportional to 414,988.20, 622,555.20 and 148,903.20 is: 223,380.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,988.20 : 622,555.20 = 148,903.20 : x
  2. Step 2: Convert to fraction form
    414,988.20/622,555.20 = 148,903.20/x
  3. Step 3: Cross multiply
    414,988.20x = 622,555.20 × 148,903.20
  4. Step 4: Simplify right side
    414,988.20x = 92,700,461,456.64
  5. Step 5: Solve for x
    x = 92,700,461,456.64/414,988.20
  6. Step 6: Final answer
    x = 223,380.96

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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.