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Finding the Fourth Proportional to 327,491.10, 491,495.85 and 127,907.10

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Solution

The fourth proportional to 327,491.10, 491,495.85 and 127,907.10 is: 191,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,491.10 : 491,495.85 = 127,907.10 : x
  2. Step 2: Convert to fraction form
    327,491.10/491,495.85 = 127,907.10/x
  3. Step 3: Cross multiply
    327,491.10x = 491,495.85 × 127,907.10
  4. Step 4: Simplify right side
    327,491.10x = 62,865,808,835.54
  5. Step 5: Solve for x
    x = 62,865,808,835.54/327,491.10
  6. Step 6: Final answer
    x = 191,961.88

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1.5x scale

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.