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Finding the Fourth Proportional to 347,625.25, 479,722.85 and 188,649.25

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Solution

The fourth proportional to 347,625.25, 479,722.85 and 188,649.25 is: 260,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,625.25 : 479,722.85 = 188,649.25 : x
  2. Step 2: Convert to fraction form
    347,625.25/479,722.85 = 188,649.25/x
  3. Step 3: Cross multiply
    347,625.25x = 479,722.85 × 188,649.25
  4. Step 4: Simplify right side
    347,625.25x = 90,499,355,860.36
  5. Step 5: Solve for x
    x = 90,499,355,860.36/347,625.25
  6. Step 6: Final answer
    x = 260,335.97

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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.