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Finding the Fourth Proportional to 982,404.80, 1,474,384.80 and 383,652.80

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Solution

The fourth proportional to 982,404.80, 1,474,384.80 and 383,652.80 is: 575,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,404.80 : 1,474,384.80 = 383,652.80 : x
  2. Step 2: Convert to fraction form
    982,404.80/1,474,384.80 = 383,652.80/x
  3. Step 3: Cross multiply
    982,404.80x = 1,474,384.80 × 383,652.80
  4. Step 4: Simplify right side
    982,404.80x = 565,651,856,797.44
  5. Step 5: Solve for x
    x = 565,651,856,797.44/982,404.80
  6. Step 6: Final answer
    x = 575,782.87

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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.