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Finding the Fourth Proportional to 414,104.40, 621,302.40 and 177,519.60

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Solution

The fourth proportional to 414,104.40, 621,302.40 and 177,519.60 is: 266,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,104.40 : 621,302.40 = 177,519.60 : x
  2. Step 2: Convert to fraction form
    414,104.40/621,302.40 = 177,519.60/x
  3. Step 3: Cross multiply
    414,104.40x = 621,302.40 × 177,519.60
  4. Step 4: Simplify right side
    414,104.40x = 110,293,353,527.04
  5. Step 5: Solve for x
    x = 110,293,353,527.04/414,104.40
  6. Step 6: Final answer
    x = 266,341.90

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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.