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Finding the Fourth Proportional to 295,941.74, 408,393.45 and 161,805.74

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Solution

The fourth proportional to 295,941.74, 408,393.45 and 161,805.74 is: 223,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,941.74 : 408,393.45 = 161,805.74 : x
  2. Step 2: Convert to fraction form
    295,941.74/408,393.45 = 161,805.74/x
  3. Step 3: Cross multiply
    295,941.74x = 408,393.45 × 161,805.74
  4. Step 4: Simplify right side
    295,941.74x = 66,080,404,388.40
  5. Step 5: Solve for x
    x = 66,080,404,388.40/295,941.74
  6. Step 6: Final answer
    x = 223,288.56

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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.