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Finding the Fourth Proportional to 517,245.66, 713,394.23 and 353,998.94

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Solution

The fourth proportional to 517,245.66, 713,394.23 and 353,998.94 is: 488,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,245.66 : 713,394.23 = 353,998.94 : x
  2. Step 2: Convert to fraction form
    517,245.66/713,394.23 = 353,998.94/x
  3. Step 3: Cross multiply
    517,245.66x = 713,394.23 × 353,998.94
  4. Step 4: Simplify right side
    517,245.66x = 252,540,801,222.12
  5. Step 5: Solve for x
    x = 252,540,801,222.12/517,245.66
  6. Step 6: Final answer
    x = 488,241.51

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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.