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Finding the Fourth Proportional to 447,911.64, 618,118.05 and 246,707.64

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Solution

The fourth proportional to 447,911.64, 618,118.05 and 246,707.64 is: 340,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,911.64 : 618,118.05 = 246,707.64 : x
  2. Step 2: Convert to fraction form
    447,911.64/618,118.05 = 246,707.64/x
  3. Step 3: Cross multiply
    447,911.64x = 618,118.05 × 246,707.64
  4. Step 4: Simplify right side
    447,911.64x = 152,494,445,356.90
  5. Step 5: Solve for x
    x = 152,494,445,356.90/447,911.64
  6. Step 6: Final answer
    x = 340,456.54

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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.