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Finding the Fourth Proportional to 363,982.80, 545,974.20 and 238,011.60

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Solution

The fourth proportional to 363,982.80, 545,974.20 and 238,011.60 is: 357,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,982.80 : 545,974.20 = 238,011.60 : x
  2. Step 2: Convert to fraction form
    363,982.80/545,974.20 = 238,011.60/x
  3. Step 3: Cross multiply
    363,982.80x = 545,974.20 × 238,011.60
  4. Step 4: Simplify right side
    363,982.80x = 129,948,192,900.72
  5. Step 5: Solve for x
    x = 129,948,192,900.72/363,982.80
  6. Step 6: Final answer
    x = 357,017.40

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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.