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Finding the Fourth Proportional to 449,348.74, 620,105.49 and 255,746.96

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Solution

The fourth proportional to 449,348.74, 620,105.49 and 255,746.96 is: 352,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,348.74 : 620,105.49 = 255,746.96 : x
  2. Step 2: Convert to fraction form
    449,348.74/620,105.49 = 255,746.96/x
  3. Step 3: Cross multiply
    449,348.74x = 620,105.49 × 255,746.96
  4. Step 4: Simplify right side
    449,348.74x = 158,590,092,212.63
  5. Step 5: Solve for x
    x = 158,590,092,212.63/449,348.74
  6. Step 6: Final answer
    x = 352,933.21

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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.