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Finding the Fourth Proportional to 620,611.80, 931,176.90 and 200,016.60

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Solution

The fourth proportional to 620,611.80, 931,176.90 and 200,016.60 is: 300,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,611.80 : 931,176.90 = 200,016.60 : x
  2. Step 2: Convert to fraction form
    620,611.80/931,176.90 = 200,016.60/x
  3. Step 3: Cross multiply
    620,611.80x = 931,176.90 × 200,016.60
  4. Step 4: Simplify right side
    620,611.80x = 186,250,837,536.54
  5. Step 5: Solve for x
    x = 186,250,837,536.54/620,611.80
  6. Step 6: Final answer
    x = 300,108.44

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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.