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Finding the Fourth Proportional to 483,505.02, 666,698.85 and 330,568.02

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Solution

The fourth proportional to 483,505.02, 666,698.85 and 330,568.02 is: 455,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,505.02 : 666,698.85 = 330,568.02 : x
  2. Step 2: Convert to fraction form
    483,505.02/666,698.85 = 330,568.02/x
  3. Step 3: Cross multiply
    483,505.02x = 666,698.85 × 330,568.02
  4. Step 4: Simplify right side
    483,505.02x = 220,389,318,780.78
  5. Step 5: Solve for x
    x = 220,389,318,780.78/483,505.02
  6. Step 6: Final answer
    x = 455,815.99

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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.