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Finding the Fourth Proportional to 622,183.91, 858,661.04 and 377,239.91

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Solution

The fourth proportional to 622,183.91, 858,661.04 and 377,239.91 is: 520,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,183.91 : 858,661.04 = 377,239.91 : x
  2. Step 2: Convert to fraction form
    622,183.91/858,661.04 = 377,239.91/x
  3. Step 3: Cross multiply
    622,183.91x = 858,661.04 × 377,239.91
  4. Step 4: Simplify right side
    622,183.91x = 323,921,211,563.91
  5. Step 5: Solve for x
    x = 323,921,211,563.91/622,183.91
  6. Step 6: Final answer
    x = 520,619.72

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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.