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Finding the Fourth Proportional to 341,455.40, 512,183.10 and 163,919.60

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Solution

The fourth proportional to 341,455.40, 512,183.10 and 163,919.60 is: 245,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,455.40 : 512,183.10 = 163,919.60 : x
  2. Step 2: Convert to fraction form
    341,455.40/512,183.10 = 163,919.60/x
  3. Step 3: Cross multiply
    341,455.40x = 512,183.10 × 163,919.60
  4. Step 4: Simplify right side
    341,455.40x = 83,956,848,878.76
  5. Step 5: Solve for x
    x = 83,956,848,878.76/341,455.40
  6. Step 6: Final answer
    x = 245,879.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.