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Finding the Fourth Proportional to 295,671.20, 442,850.70 and 256,305.20

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Solution

The fourth proportional to 295,671.20, 442,850.70 and 256,305.20 is: 383,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,671.20 : 442,850.70 = 256,305.20 : x
  2. Step 2: Convert to fraction form
    295,671.20/442,850.70 = 256,305.20/x
  3. Step 3: Cross multiply
    295,671.20x = 442,850.70 × 256,305.20
  4. Step 4: Simplify right side
    295,671.20x = 113,504,937,233.64
  5. Step 5: Solve for x
    x = 113,504,937,233.64/295,671.20
  6. Step 6: Final answer
    x = 383,889.05

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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.