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Finding the Fourth Proportional to 295,274.30, 442,911.45 and 205,072.70

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Solution

The fourth proportional to 295,274.30, 442,911.45 and 205,072.70 is: 307,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,274.30 : 442,911.45 = 205,072.70 : x
  2. Step 2: Convert to fraction form
    295,274.30/442,911.45 = 205,072.70/x
  3. Step 3: Cross multiply
    295,274.30x = 442,911.45 × 205,072.70
  4. Step 4: Simplify right side
    295,274.30x = 90,829,046,912.42
  5. Step 5: Solve for x
    x = 90,829,046,912.42/295,274.30
  6. Step 6: Final answer
    x = 307,609.05

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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.