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Finding the Fourth Proportional to 295,917.80, 443,876.70 and 189,629.60

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Solution

The fourth proportional to 295,917.80, 443,876.70 and 189,629.60 is: 284,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,917.80 : 443,876.70 = 189,629.60 : x
  2. Step 2: Convert to fraction form
    295,917.80/443,876.70 = 189,629.60/x
  3. Step 3: Cross multiply
    295,917.80x = 443,876.70 × 189,629.60
  4. Step 4: Simplify right side
    295,917.80x = 84,172,161,070.32
  5. Step 5: Solve for x
    x = 84,172,161,070.32/295,917.80
  6. Step 6: Final answer
    x = 284,444.40

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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.