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Finding the Fourth Proportional to 447,891.77, 618,090.64 and 246,687.77

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Solution

The fourth proportional to 447,891.77, 618,090.64 and 246,687.77 is: 340,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,891.77 : 618,090.64 = 246,687.77 : x
  2. Step 2: Convert to fraction form
    447,891.77/618,090.64 = 246,687.77/x
  3. Step 3: Cross multiply
    447,891.77x = 618,090.64 × 246,687.77
  4. Step 4: Simplify right side
    447,891.77x = 152,475,401,639.47
  5. Step 5: Solve for x
    x = 152,475,401,639.47/447,891.77
  6. Step 6: Final answer
    x = 340,429.12

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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.