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Finding the Fourth Proportional to 297,957.56, 410,778.98 and 202,298.20

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Solution

The fourth proportional to 297,957.56, 410,778.98 and 202,298.20 is: 278,898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,957.56 : 410,778.98 = 202,298.20 : x
  2. Step 2: Convert to fraction form
    297,957.56/410,778.98 = 202,298.20/x
  3. Step 3: Cross multiply
    297,957.56x = 410,778.98 × 202,298.20
  4. Step 4: Simplify right side
    297,957.56x = 83,099,848,251.84
  5. Step 5: Solve for x
    x = 83,099,848,251.84/297,957.56
  6. Step 6: Final answer
    x = 278,898.27

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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.