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Finding the Fourth Proportional to 604,990.80, 906,611.40 and 267,755.40

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Solution

The fourth proportional to 604,990.80, 906,611.40 and 267,755.40 is: 401,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,990.80 : 906,611.40 = 267,755.40 : x
  2. Step 2: Convert to fraction form
    604,990.80/906,611.40 = 267,755.40/x
  3. Step 3: Cross multiply
    604,990.80x = 906,611.40 × 267,755.40
  4. Step 4: Simplify right side
    604,990.80x = 242,750,098,051.56
  5. Step 5: Solve for x
    x = 242,750,098,051.56/604,990.80
  6. Step 6: Final answer
    x = 401,245.93

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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.