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Finding the Fourth Proportional to 613,179.87, 846,181.64 and 341,243.18

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Solution

The fourth proportional to 613,179.87, 846,181.64 and 341,243.18 is: 470,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,179.87 : 846,181.64 = 341,243.18 : x
  2. Step 2: Convert to fraction form
    613,179.87/846,181.64 = 341,243.18/x
  3. Step 3: Cross multiply
    613,179.87x = 846,181.64 × 341,243.18
  4. Step 4: Simplify right side
    613,179.87x = 288,753,711,567.10
  5. Step 5: Solve for x
    x = 288,753,711,567.10/613,179.87
  6. Step 6: Final answer
    x = 470,911.92

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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.