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Finding the Fourth Proportional to 446,721, 616,474.98 and 245,517

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Solution

The fourth proportional to 446,721, 616,474.98 and 245,517 is: 338,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,721 : 616,474.98 = 245,517 : x
  2. Step 2: Convert to fraction form
    446,721/616,474.98 = 245,517/x
  3. Step 3: Cross multiply
    446,721x = 616,474.98 × 245,517
  4. Step 4: Simplify right side
    446,721x = 151,355,087,664.66
  5. Step 5: Solve for x
    x = 151,355,087,664.66/446,721
  6. Step 6: Final answer
    x = 338,813.46

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1.5x scale

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.