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Finding the Fourth Proportional to 308,866.80, 463,300.20 and 304,201.20

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Solution

The fourth proportional to 308,866.80, 463,300.20 and 304,201.20 is: 456,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,866.80 : 463,300.20 = 304,201.20 : x
  2. Step 2: Convert to fraction form
    308,866.80/463,300.20 = 304,201.20/x
  3. Step 3: Cross multiply
    308,866.80x = 463,300.20 × 304,201.20
  4. Step 4: Simplify right side
    308,866.80x = 140,936,476,800.24
  5. Step 5: Solve for x
    x = 140,936,476,800.24/308,866.80
  6. Step 6: Final answer
    x = 456,301.80

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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.