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Finding the Fourth Proportional to 219,160.89, 328,243.11 and 171,478.83

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Solution

The fourth proportional to 219,160.89, 328,243.11 and 171,478.83 is: 256,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,160.89 : 328,243.11 = 171,478.83 : x
  2. Step 2: Convert to fraction form
    219,160.89/328,243.11 = 171,478.83/x
  3. Step 3: Cross multiply
    219,160.89x = 328,243.11 × 171,478.83
  4. Step 4: Simplify right side
    219,160.89x = 56,286,744,458.36
  5. Step 5: Solve for x
    x = 56,286,744,458.36/219,160.89
  6. Step 6: Final answer
    x = 256,828.42

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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.