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Finding the Fourth Proportional to 363,015.20, 544,085.40 and 185,430.80

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Solution

The fourth proportional to 363,015.20, 544,085.40 and 185,430.80 is: 277,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,015.20 : 544,085.40 = 185,430.80 : x
  2. Step 2: Convert to fraction form
    363,015.20/544,085.40 = 185,430.80/x
  3. Step 3: Cross multiply
    363,015.20x = 544,085.40 × 185,430.80
  4. Step 4: Simplify right side
    363,015.20x = 100,890,190,990.32
  5. Step 5: Solve for x
    x = 100,890,190,990.32/363,015.20
  6. Step 6: Final answer
    x = 277,922.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.