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Finding the Fourth Proportional to 343,507.38, 515,409.39 and 185,846.82

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Solution

The fourth proportional to 343,507.38, 515,409.39 and 185,846.82 is: 278,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,507.38 : 515,409.39 = 185,846.82 : x
  2. Step 2: Convert to fraction form
    343,507.38/515,409.39 = 185,846.82/x
  3. Step 3: Cross multiply
    343,507.38x = 515,409.39 × 185,846.82
  4. Step 4: Simplify right side
    343,507.38x = 95,787,196,129.64
  5. Step 5: Solve for x
    x = 95,787,196,129.64/343,507.38
  6. Step 6: Final answer
    x = 278,850.48

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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.