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Finding the Fourth Proportional to 331,024.80, 496,537.20 and 205,053.60

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Solution

The fourth proportional to 331,024.80, 496,537.20 and 205,053.60 is: 307,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,024.80 : 496,537.20 = 205,053.60 : x
  2. Step 2: Convert to fraction form
    331,024.80/496,537.20 = 205,053.60/x
  3. Step 3: Cross multiply
    331,024.80x = 496,537.20 × 205,053.60
  4. Step 4: Simplify right side
    331,024.80x = 101,816,740,393.92
  5. Step 5: Solve for x
    x = 101,816,740,393.92/331,024.80
  6. Step 6: Final answer
    x = 307,580.40

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1.5x scale

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.