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Finding the Fourth Proportional to 303,580.94, 419,211.33 and 189,056.24

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Solution

The fourth proportional to 303,580.94, 419,211.33 and 189,056.24 is: 261,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,580.94 : 419,211.33 = 189,056.24 : x
  2. Step 2: Convert to fraction form
    303,580.94/419,211.33 = 189,056.24/x
  3. Step 3: Cross multiply
    303,580.94x = 419,211.33 × 189,056.24
  4. Step 4: Simplify right side
    303,580.94x = 79,254,517,815.20
  5. Step 5: Solve for x
    x = 79,254,517,815.20/303,580.94
  6. Step 6: Final answer
    x = 261,065.53

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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.