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Finding the Fourth Proportional to 307,406.14, 424,220.83 and 169,581.94

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Solution

The fourth proportional to 307,406.14, 424,220.83 and 169,581.94 is: 234,023.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,406.14 : 424,220.83 = 169,581.94 : x
  2. Step 2: Convert to fraction form
    307,406.14/424,220.83 = 169,581.94/x
  3. Step 3: Cross multiply
    307,406.14x = 424,220.83 × 169,581.94
  4. Step 4: Simplify right side
    307,406.14x = 71,940,189,855.30
  5. Step 5: Solve for x
    x = 71,940,189,855.30/307,406.14
  6. Step 6: Final answer
    x = 234,023.27

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1.5x scale

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.