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Finding the Fourth Proportional to 307,580.40, 461,716.20 and 237,769.20

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Solution

The fourth proportional to 307,580.40, 461,716.20 and 237,769.20 is: 356,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,580.40 : 461,716.20 = 237,769.20 : x
  2. Step 2: Convert to fraction form
    307,580.40/461,716.20 = 237,769.20/x
  3. Step 3: Cross multiply
    307,580.40x = 461,716.20 × 237,769.20
  4. Step 4: Simplify right side
    307,580.40x = 109,781,891,501.04
  5. Step 5: Solve for x
    x = 109,781,891,501.04/307,580.40
  6. Step 6: Final answer
    x = 356,920.96

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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.