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Finding the Fourth Proportional to 447,936, 618,151.68 and 246,732

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Solution

The fourth proportional to 447,936, 618,151.68 and 246,732 is: 340,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,936 : 618,151.68 = 246,732 : x
  2. Step 2: Convert to fraction form
    447,936/618,151.68 = 246,732/x
  3. Step 3: Cross multiply
    447,936x = 618,151.68 × 246,732
  4. Step 4: Simplify right side
    447,936x = 152,517,800,309.76
  5. Step 5: Solve for x
    x = 152,517,800,309.76/447,936
  6. Step 6: Final answer
    x = 340,490.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.