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Finding the Fourth Proportional to 310,958.87, 429,131.52 and 174,997.67

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Solution

The fourth proportional to 310,958.87, 429,131.52 and 174,997.67 is: 241,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,958.87 : 429,131.52 = 174,997.67 : x
  2. Step 2: Convert to fraction form
    310,958.87/429,131.52 = 174,997.67/x
  3. Step 3: Cross multiply
    310,958.87x = 429,131.52 × 174,997.67
  4. Step 4: Simplify right side
    310,958.87x = 75,097,013,977.90
  5. Step 5: Solve for x
    x = 75,097,013,977.90/310,958.87
  6. Step 6: Final answer
    x = 241,501.44

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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.