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Finding the Fourth Proportional to 297,863.60, 446,795.40 and 261,705.20

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Solution

The fourth proportional to 297,863.60, 446,795.40 and 261,705.20 is: 392,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,863.60 : 446,795.40 = 261,705.20 : x
  2. Step 2: Convert to fraction form
    297,863.60/446,795.40 = 261,705.20/x
  3. Step 3: Cross multiply
    297,863.60x = 446,795.40 × 261,705.20
  4. Step 4: Simplify right side
    297,863.60x = 116,928,679,516.08
  5. Step 5: Solve for x
    x = 116,928,679,516.08/297,863.60
  6. Step 6: Final answer
    x = 392,557.80

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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.