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Finding the Fourth Proportional to 503,780.20, 755,654.10 and 166,836.40

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Solution

The fourth proportional to 503,780.20, 755,654.10 and 166,836.40 is: 250,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,780.20 : 755,654.10 = 166,836.40 : x
  2. Step 2: Convert to fraction form
    503,780.20/755,654.10 = 166,836.40/x
  3. Step 3: Cross multiply
    503,780.20x = 755,654.10 × 166,836.40
  4. Step 4: Simplify right side
    503,780.20x = 126,070,609,689.24
  5. Step 5: Solve for x
    x = 126,070,609,689.24/503,780.20
  6. Step 6: Final answer
    x = 250,249.24

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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.