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Finding the Fourth Proportional to 308,529.30, 461,919.15 and 308,529.30

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Solution

The fourth proportional to 308,529.30, 461,919.15 and 308,529.30 is: 461,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,529.30 : 461,919.15 = 308,529.30 : x
  2. Step 2: Convert to fraction form
    308,529.30/461,919.15 = 308,529.30/x
  3. Step 3: Cross multiply
    308,529.30x = 461,919.15 × 308,529.30
  4. Step 4: Simplify right side
    308,529.30x = 142,515,592,006.10
  5. Step 5: Solve for x
    x = 142,515,592,006.10/308,529.30
  6. Step 6: Final answer
    x = 461,919.15

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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.