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Finding the Fourth Proportional to 336,468.87, 464,209.78 and 215,676.76

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Solution

The fourth proportional to 336,468.87, 464,209.78 and 215,676.76 is: 297,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,468.87 : 464,209.78 = 215,676.76 : x
  2. Step 2: Convert to fraction form
    336,468.87/464,209.78 = 215,676.76/x
  3. Step 3: Cross multiply
    336,468.87x = 464,209.78 × 215,676.76
  4. Step 4: Simplify right side
    336,468.87x = 100,119,261,310.71
  5. Step 5: Solve for x
    x = 100,119,261,310.71/336,468.87
  6. Step 6: Final answer
    x = 297,558.76

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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.