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Finding the Fourth Proportional to 580,833.80, 871,293.90 and 206,808.20

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Solution

The fourth proportional to 580,833.80, 871,293.90 and 206,808.20 is: 310,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,833.80 : 871,293.90 = 206,808.20 : x
  2. Step 2: Convert to fraction form
    580,833.80/871,293.90 = 206,808.20/x
  3. Step 3: Cross multiply
    580,833.80x = 871,293.90 × 206,808.20
  4. Step 4: Simplify right side
    580,833.80x = 180,190,723,129.98
  5. Step 5: Solve for x
    x = 180,190,723,129.98/580,833.80
  6. Step 6: Final answer
    x = 310,227.68

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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.