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Finding the Fourth Proportional to 307,578.60, 461,601.18 and 207,501.48

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Solution

The fourth proportional to 307,578.60, 461,601.18 and 207,501.48 is: 311,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,578.60 : 461,601.18 = 207,501.48 : x
  2. Step 2: Convert to fraction form
    307,578.60/461,601.18 = 207,501.48/x
  3. Step 3: Cross multiply
    307,578.60x = 461,601.18 × 207,501.48
  4. Step 4: Simplify right side
    307,578.60x = 95,782,928,019.75
  5. Step 5: Solve for x
    x = 95,782,928,019.75/307,578.60
  6. Step 6: Final answer
    x = 311,409.60

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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.