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Finding the Fourth Proportional to 343,454.88, 515,330.64 and 185,794.32

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Solution

The fourth proportional to 343,454.88, 515,330.64 and 185,794.32 is: 278,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,454.88 : 515,330.64 = 185,794.32 : x
  2. Step 2: Convert to fraction form
    343,454.88/515,330.64 = 185,794.32/x
  3. Step 3: Cross multiply
    343,454.88x = 515,330.64 × 185,794.32
  4. Step 4: Simplify right side
    343,454.88x = 95,745,505,833.96
  5. Step 5: Solve for x
    x = 95,745,505,833.96/343,454.88
  6. Step 6: Final answer
    x = 278,771.71

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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.