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Finding the Fourth Proportional to 331,421.80, 496,622.40 and 246,784.90

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Solution

The fourth proportional to 331,421.80, 496,622.40 and 246,784.90 is: 369,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,421.80 : 496,622.40 = 246,784.90 : x
  2. Step 2: Convert to fraction form
    331,421.80/496,622.40 = 246,784.90/x
  3. Step 3: Cross multiply
    331,421.80x = 496,622.40 × 246,784.90
  4. Step 4: Simplify right side
    331,421.80x = 122,558,909,321.76
  5. Step 5: Solve for x
    x = 122,558,909,321.76/331,421.80
  6. Step 6: Final answer
    x = 369,797.37

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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.