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Finding the Fourth Proportional to 297,721.83, 447,157.19 and 255,123.83

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Solution

The fourth proportional to 297,721.83, 447,157.19 and 255,123.83 is: 383,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,721.83 : 447,157.19 = 255,123.83 : x
  2. Step 2: Convert to fraction form
    297,721.83/447,157.19 = 255,123.83/x
  3. Step 3: Cross multiply
    297,721.83x = 447,157.19 × 255,123.83
  4. Step 4: Simplify right side
    297,721.83x = 114,080,456,680.54
  5. Step 5: Solve for x
    x = 114,080,456,680.54/297,721.83
  6. Step 6: Final answer
    x = 383,178.00

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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.