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Finding the Fourth Proportional to 449,467.49, 620,267.25 and 245,521.24

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Solution

The fourth proportional to 449,467.49, 620,267.25 and 245,521.24 is: 338,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,467.49 : 620,267.25 = 245,521.24 : x
  2. Step 2: Convert to fraction form
    449,467.49/620,267.25 = 245,521.24/x
  3. Step 3: Cross multiply
    449,467.49x = 620,267.25 × 245,521.24
  4. Step 4: Simplify right side
    449,467.49x = 152,288,783,721.43
  5. Step 5: Solve for x
    x = 152,288,783,721.43/449,467.49
  6. Step 6: Final answer
    x = 338,820.46

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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.