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Finding the Fourth Proportional to 447,925.64, 618,091.22 and 275,816.20

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Solution

The fourth proportional to 447,925.64, 618,091.22 and 275,816.20 is: 380,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,925.64 : 618,091.22 = 275,816.20 : x
  2. Step 2: Convert to fraction form
    447,925.64/618,091.22 = 275,816.20/x
  3. Step 3: Cross multiply
    447,925.64x = 618,091.22 × 275,816.20
  4. Step 4: Simplify right side
    447,925.64x = 170,479,571,553.76
  5. Step 5: Solve for x
    x = 170,479,571,553.76/447,925.64
  6. Step 6: Final answer
    x = 380,597.93

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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.