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Finding the Fourth Proportional to 308,929.20, 463,393.80 and 246,721.20

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Solution

The fourth proportional to 308,929.20, 463,393.80 and 246,721.20 is: 370,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,929.20 : 463,393.80 = 246,721.20 : x
  2. Step 2: Convert to fraction form
    308,929.20/463,393.80 = 246,721.20/x
  3. Step 3: Cross multiply
    308,929.20x = 463,393.80 × 246,721.20
  4. Step 4: Simplify right side
    308,929.20x = 114,329,074,408.56
  5. Step 5: Solve for x
    x = 114,329,074,408.56/308,929.20
  6. Step 6: Final answer
    x = 370,081.80

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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.