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Finding the Fourth Proportional to 557,760.57, 769,629.45 and 328,181.37

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Solution

The fourth proportional to 557,760.57, 769,629.45 and 328,181.37 is: 452,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,760.57 : 769,629.45 = 328,181.37 : x
  2. Step 2: Convert to fraction form
    557,760.57/769,629.45 = 328,181.37/x
  3. Step 3: Cross multiply
    557,760.57x = 769,629.45 × 328,181.37
  4. Step 4: Simplify right side
    557,760.57x = 252,578,047,293.35
  5. Step 5: Solve for x
    x = 252,578,047,293.35/557,760.57
  6. Step 6: Final answer
    x = 452,843.14

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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.