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Finding the Fourth Proportional to 572,183.51, 789,525.54 and 342,687.02

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Solution

The fourth proportional to 572,183.51, 789,525.54 and 342,687.02 is: 472,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,183.51 : 789,525.54 = 342,687.02 : x
  2. Step 2: Convert to fraction form
    572,183.51/789,525.54 = 342,687.02/x
  3. Step 3: Cross multiply
    572,183.51x = 789,525.54 × 342,687.02
  4. Step 4: Simplify right side
    572,183.51x = 270,560,150,568.86
  5. Step 5: Solve for x
    x = 270,560,150,568.86/572,183.51
  6. Step 6: Final answer
    x = 472,855.56

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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.