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Finding the Fourth Proportional to 574,679.72, 862,017.96 and 258,766.76

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Solution

The fourth proportional to 574,679.72, 862,017.96 and 258,766.76 is: 388,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,679.72 : 862,017.96 = 258,766.76 : x
  2. Step 2: Convert to fraction form
    574,679.72/862,017.96 = 258,766.76/x
  3. Step 3: Cross multiply
    574,679.72x = 862,017.96 × 258,766.76
  4. Step 4: Simplify right side
    574,679.72x = 223,061,594,571.01
  5. Step 5: Solve for x
    x = 223,061,594,571.01/574,679.72
  6. Step 6: Final answer
    x = 388,149.41

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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.