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Finding the Fourth Proportional to 307,825.40, 461,738.10 and 302,576.60

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Solution

The fourth proportional to 307,825.40, 461,738.10 and 302,576.60 is: 453,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,825.40 : 461,738.10 = 302,576.60 : x
  2. Step 2: Convert to fraction form
    307,825.40/461,738.10 = 302,576.60/x
  3. Step 3: Cross multiply
    307,825.40x = 461,738.10 × 302,576.60
  4. Step 4: Simplify right side
    307,825.40x = 139,711,144,388.46
  5. Step 5: Solve for x
    x = 139,711,144,388.46/307,825.40
  6. Step 6: Final answer
    x = 453,864.90

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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.