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Finding the Fourth Proportional to 384,785.83, 530,874.98 and 248,991.58

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Solution

The fourth proportional to 384,785.83, 530,874.98 and 248,991.58 is: 343,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,785.83 : 530,874.98 = 248,991.58 : x
  2. Step 2: Convert to fraction form
    384,785.83/530,874.98 = 248,991.58/x
  3. Step 3: Cross multiply
    384,785.83x = 530,874.98 × 248,991.58
  4. Step 4: Simplify right side
    384,785.83x = 132,183,397,418.85
  5. Step 5: Solve for x
    x = 132,183,397,418.85/384,785.83
  6. Step 6: Final answer
    x = 343,524.60

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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.