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Finding the Fourth Proportional to 431,847.20, 595,947.16 and 238,249.64

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Solution

The fourth proportional to 431,847.20, 595,947.16 and 238,249.64 is: 328,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,847.20 : 595,947.16 = 238,249.64 : x
  2. Step 2: Convert to fraction form
    431,847.20/595,947.16 = 238,249.64/x
  3. Step 3: Cross multiply
    431,847.20x = 595,947.16 × 238,249.64
  4. Step 4: Simplify right side
    431,847.20x = 141,984,196,329.02
  5. Step 5: Solve for x
    x = 141,984,196,329.02/431,847.20
  6. Step 6: Final answer
    x = 328,783.41

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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.