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Finding the Fourth Proportional to 358,163.34, 493,796.98 and 259,958.38

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Solution

The fourth proportional to 358,163.34, 493,796.98 and 259,958.38 is: 358,402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,163.34 : 493,796.98 = 259,958.38 : x
  2. Step 2: Convert to fraction form
    358,163.34/493,796.98 = 259,958.38/x
  3. Step 3: Cross multiply
    358,163.34x = 493,796.98 × 259,958.38
  4. Step 4: Simplify right side
    358,163.34x = 128,366,662,969.69
  5. Step 5: Solve for x
    x = 128,366,662,969.69/358,163.34
  6. Step 6: Final answer
    x = 358,402.57

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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.