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Finding the Fourth Proportional to 446,642.03, 669,586.23 and 193,732.11

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Solution

The fourth proportional to 446,642.03, 669,586.23 and 193,732.11 is: 290,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,642.03 : 669,586.23 = 193,732.11 : x
  2. Step 2: Convert to fraction form
    446,642.03/669,586.23 = 193,732.11/x
  3. Step 3: Cross multiply
    446,642.03x = 669,586.23 × 193,732.11
  4. Step 4: Simplify right side
    446,642.03x = 129,720,355,865.36
  5. Step 5: Solve for x
    x = 129,720,355,865.36/446,642.03
  6. Step 6: Final answer
    x = 290,434.72

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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.