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Finding the Fourth Proportional to 503,815.20, 755,706.60 and 166,871.40

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Solution

The fourth proportional to 503,815.20, 755,706.60 and 166,871.40 is: 250,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,815.20 : 755,706.60 = 166,871.40 : x
  2. Step 2: Convert to fraction form
    503,815.20/755,706.60 = 166,871.40/x
  3. Step 3: Cross multiply
    503,815.20x = 755,706.60 × 166,871.40
  4. Step 4: Simplify right side
    503,815.20x = 126,105,818,331.24
  5. Step 5: Solve for x
    x = 126,105,818,331.24/503,815.20
  6. Step 6: Final answer
    x = 250,301.73

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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.