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Finding the Fourth Proportional to 436,976.40, 603,116.75 and 275,722.80

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Solution

The fourth proportional to 436,976.40, 603,116.75 and 275,722.80 is: 380,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,976.40 : 603,116.75 = 275,722.80 : x
  2. Step 2: Convert to fraction form
    436,976.40/603,116.75 = 275,722.80/x
  3. Step 3: Cross multiply
    436,976.40x = 603,116.75 × 275,722.80
  4. Step 4: Simplify right side
    436,976.40x = 166,293,039,036.90
  5. Step 5: Solve for x
    x = 166,293,039,036.90/436,976.40
  6. Step 6: Final answer
    x = 380,553.82

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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.