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Finding the Fourth Proportional to 297,530.72, 410,473.68 and 190,072.88

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Solution

The fourth proportional to 297,530.72, 410,473.68 and 190,072.88 is: 262,224.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,530.72 : 410,473.68 = 190,072.88 : x
  2. Step 2: Convert to fraction form
    297,530.72/410,473.68 = 190,072.88/x
  3. Step 3: Cross multiply
    297,530.72x = 410,473.68 × 190,072.88
  4. Step 4: Simplify right side
    297,530.72x = 78,019,914,521.80
  5. Step 5: Solve for x
    x = 78,019,914,521.80/297,530.72
  6. Step 6: Final answer
    x = 262,224.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.