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Finding the Fourth Proportional to 297,246.71, 445,020.48 and 197,207.87

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Solution

The fourth proportional to 297,246.71, 445,020.48 and 197,207.87 is: 295,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,246.71 : 445,020.48 = 197,207.87 : x
  2. Step 2: Convert to fraction form
    297,246.71/445,020.48 = 197,207.87/x
  3. Step 3: Cross multiply
    297,246.71x = 445,020.48 × 197,207.87
  4. Step 4: Simplify right side
    297,246.71x = 87,761,538,742.08
  5. Step 5: Solve for x
    x = 87,761,538,742.08/297,246.71
  6. Step 6: Final answer
    x = 295,248.14

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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.