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Finding the Fourth Proportional to 219,606.80, 329,410.20 and 193,362.80

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Solution

The fourth proportional to 219,606.80, 329,410.20 and 193,362.80 is: 290,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,606.80 : 329,410.20 = 193,362.80 : x
  2. Step 2: Convert to fraction form
    219,606.80/329,410.20 = 193,362.80/x
  3. Step 3: Cross multiply
    219,606.80x = 329,410.20 × 193,362.80
  4. Step 4: Simplify right side
    219,606.80x = 63,695,678,620.56
  5. Step 5: Solve for x
    x = 63,695,678,620.56/219,606.80
  6. Step 6: Final answer
    x = 290,044.20

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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.