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Finding the Fourth Proportional to 308,945.20, 463,417.80 and 246,737.20

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Solution

The fourth proportional to 308,945.20, 463,417.80 and 246,737.20 is: 370,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,945.20 : 463,417.80 = 246,737.20 : x
  2. Step 2: Convert to fraction form
    308,945.20/463,417.80 = 246,737.20/x
  3. Step 3: Cross multiply
    308,945.20x = 463,417.80 × 246,737.20
  4. Step 4: Simplify right side
    308,945.20x = 114,342,410,402.16
  5. Step 5: Solve for x
    x = 114,342,410,402.16/308,945.20
  6. Step 6: Final answer
    x = 370,105.80

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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.