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Finding the Fourth Proportional to 295,805.22, 408,243.64 and 171,653.55

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Solution

The fourth proportional to 295,805.22, 408,243.64 and 171,653.55 is: 236,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,805.22 : 408,243.64 = 171,653.55 : x
  2. Step 2: Convert to fraction form
    295,805.22/408,243.64 = 171,653.55/x
  3. Step 3: Cross multiply
    295,805.22x = 408,243.64 × 171,653.55
  4. Step 4: Simplify right side
    295,805.22x = 70,076,468,432.72
  5. Step 5: Solve for x
    x = 70,076,468,432.72/295,805.22
  6. Step 6: Final answer
    x = 236,900.71

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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.