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Finding the Fourth Proportional to 348,992.55, 523,749.36 and 259,242.50

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Solution

The fourth proportional to 348,992.55, 523,749.36 and 259,242.50 is: 389,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,992.55 : 523,749.36 = 259,242.50 : x
  2. Step 2: Convert to fraction form
    348,992.55/523,749.36 = 259,242.50/x
  3. Step 3: Cross multiply
    348,992.55x = 523,749.36 × 259,242.50
  4. Step 4: Simplify right side
    348,992.55x = 135,778,090,841.05
  5. Step 5: Solve for x
    x = 135,778,090,841.05/348,992.55
  6. Step 6: Final answer
    x = 389,057.28

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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.