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Finding the Fourth Proportional to 604,821.80, 906,357.90 and 267,586.40

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Solution

The fourth proportional to 604,821.80, 906,357.90 and 267,586.40 is: 400,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,821.80 : 906,357.90 = 267,586.40 : x
  2. Step 2: Convert to fraction form
    604,821.80/906,357.90 = 267,586.40/x
  3. Step 3: Cross multiply
    604,821.80x = 906,357.90 × 267,586.40
  4. Step 4: Simplify right side
    604,821.80x = 242,529,047,572.56
  5. Step 5: Solve for x
    x = 242,529,047,572.56/604,821.80
  6. Step 6: Final answer
    x = 400,992.57

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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.